I need to figure out the height of the house using these measurements.
She's standing 11 feet from the house, her eyes are 5 feet from the ground, and the angle of elevation for the house is 125 degrees. Please help quickly. I also need to show my work for this problem.
Answers
The height of the house with an angel of elevation 25° from the line of sight of the observer is equal to 10 ft to the nearest foot.
What is an angle of elevationThe angle of elevation is the angle between the horizontal line and the line of sight which is above the horizontal line.
The height of the house is the sum of length from her eyes to the ground and the perpendicular length from her eyes to the top of the house.
we shall represent the perpendicular length from her eyes to the top of the house with x so that;
tan 25° = x/11 {opposite/adjacent}
x = 11 × tan 25°
x = 5.1294
height of the house = 5 ft + 5.1294 ft
height of the house = 10.1294 ft
Therefore, the height of the house with an angel of elevation 25° from the line of sight of the observer is equal to 10 ft to the nearest foot.
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Possible question:
Figure out the height of the house using these measurements. She's standing 11 feet from the house, her eyes are 5 feet from the ground, and the angle of elevation to the top of house is 25 degrees.
Related Questions
a hybrid vehicle has a mileage rating of 22 km/l. what is the gas mileage in miles per gallon? (given: 1 mi
Answers
To convert kilometers per liter to miles per gallon, we need to use conversion factors. There are approximately 3.785 liters in a gallon, and there are approximately 1.609 kilometers in a mile.
So, first we convert the fuel efficiency of the hybrid vehicle from kilometers per liter to kilometers per gallon:
1 km/liter * 3.785 liters/gallon = 3.785 km/gallon
Then, we convert kilometers per gallon to miles per gallon:
3.785 km/gallon * 1 mile/1.609 km = 2.35 miles/gallon
Therefore, the gas mileage of the hybrid vehicle is approximately 2.35 miles per gallon.
It's worth noting that the mileage rating of a hybrid vehicle can vary depending on factors such as driving conditions and habits, so the actual gas mileage may differ from the stated rating. Additionally, the conversion factors used here are approximate, so the exact gas mileage may vary slightly depending on the specific conversion factors used.
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Use the formula V = s³, where V is the volume and s is the edge length of the cube, to solve this problem.
A cube-shaped box has an edge length of 45 meter.
What is the volume of the container?
Enter your answer, as a fraction in simplest form, in the box.
Answers
The volume of the container is 91125 cubic meters.
What is volume?
A measurement of three-dimensional space is volume. It is frequently expressed numerically using SI-derived units, as well as different imperial or US-standard units. Volume and the definition of length are related.
A sphere is the most basic and typical form of a three-dimensional shape. A sphere's radius is the simplest parameter to measure. The radius of the sphere is used to determine its volume.
Given the edge of a cube is 45 meters.
The formula of volume is V = s³.
The volume of the container is
45³
= 91125 cubic meter.
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suppose the first and the last page of the document must be printed in color, and only two printers are able to print in color. the two color printers can also print black-and-white. how many ways are there for the 100 pages to be assigned to the four printers?
Answers
If the first and last pages of a document must be printed in color, and only two printers can print in color, then there are a total of 4⁹⁹ ways that 100 pages can be assigned for printing to four printers.
The fundamental principle of counting says that if there are p ways to do one thing and q ways to do another thing, then there are p×q ways to do both things. Number of printers that is able to print in color = 2
Number of colors printed by printers = 2
We have to determine the number of ways are there for the 100 pages to be assigned to the four printers. Now, consider there are no restrictions. Let's break this problem into two parts. First, we have to print 2 pages in color and there are only two color printers. So, number of ways to print the first and the last page of the document = 2²
= 4
Number of remaining pages of document = 98
Number of avaliabile printers = 4
Now, second part, we have only 98 pages (out of 100 pages, 2 colors pages are already printed). Each of these 98 pages can be assigned to a printer in 4 ways. So, number of ways to print remaining 98 pages of document = 4⁹⁸.
Using the counting principle, number of ways for printing the 100 pages by four printers = 2² × 4⁹⁸
= 4 × 4⁹⁸ = 4⁹⁹
Hence, required number of ways are 4⁹⁹.
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Unit 10: Circles Homework 6: Tangent Lines (Can I please have this rounded to the nearest tenth Thank You)
Answers
A tangent line is a straight line that intersects a circle at only one point, and it is perpendicular to the radius that goes through that point.
Tangent lines are important because they help us determine the relationship between circles and other geometric shapes.
To find the tangent line to a circle, we need to first identify the point of intersection between the circle and the line.
A tangent line to a circle is a line that intersects the circle at exactly one point, called the point of tangency. The tangent line is perpendicular to the radius that intersects the point of tangency.
m = [tex]\frac{-1}{r}[/tex]
where m is the slope of the tangent line, and r is the radius of the circle.
The equation of a tangent line to a circle can be found using the point-slope form of the equation:
y - y1 = m(x - x1)
where (x1, y1) is the point of tangency and m is the slope of the tangent line.
The length of the tangent segment from the point of tangency to the point of intersection with a secant line can be found using the formula:
[tex]t^2[/tex] = s1 * s2
where t is the length of the tangent segment, and s1 and s2 are the lengths of the two segments of the secant line that intersect the circle.
In terms of calculating the tangent line, we can use the point-slope formula.
Let's say we have a circle with equation [tex]x^2[/tex] + [tex]y^2[/tex] = [tex]r^2[/tex] and we want to find the tangent line at the point (a,b).
We can start by taking the derivative of the equation with respect to x, which gives us 2x + 2yy' = 0.
Solving for y', we get y' = -x/y.
Then, we substitute the values of x and y at the point of intersection (a,b) to get the slope of the radius at that point.
Finally, we take the negative reciprocal of that slope to get the slope of the tangent line, and use the point-slope formula to find the equation of the tangent line.
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the depth of water in a tank oscillates once every 6 hours. if the smallest depth is 5.5 feet and the largest depth is 8.5 feet, find a possible formula for the depth in terms of time in hours.
Answers
The depth of water in a tank oscillates once every 6 hours, with a smallest depth of 5.5 feet and a largest depth of 8.5 feet. This can be expressed in a formula as a function of time in hours. The formula is: Depth = 5.5 + (3/2) * sin(2πt/6)
The formula is: Depth = 5.5 + (3/2) * sin(2πt/6), where t is the time in hours. This formula expresses the oscillating nature of the water level, which ranges from 5.5 to 8.5 feet. The sine function used in the formula reflects the oscillation of the depth. The frequency of the oscillation is determined by the factor (2πt/6) and the range is determined by the amplitude (3/2).
To better understand this formula, consider the example of a tank with a depth of 5.5 feet when the time is 0 hours. After 6 hours, the time has increased to t = 6 and the formula yields a depth of 8.5 feet. This shows that the formula is correctly representing the oscillation of the water level, with an amplitude of 3/2.
To summarize, the formula for the depth of water in a tank oscillating once every 6 hours with a smallest depth of 5.5 feet and a largest depth of 8.5 feet is given by the expression Depth = 5.5 + (3/2) * sin(2πt/6). This formula incorporates a sine function with a factor (2πt/6) and an amplitude of 3/2. The factor determines the frequency of the oscillation, while the amplitude determines the range of the oscillation.
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Which values are in the solution set of the compound inequality? Select two options. 4(x + 3) ≤ 0 or x+1>3 –6 –3 0 3 8
Answers
The two values that are in the solution set are -6 and 4, since both of these values satisfy at least one of the inequalities in the compound inequality.
What is inequality equation?
An inequality is a mathematical statement that compares two values or expressions using one of the inequality symbols: < (less than), > (greater than), ≤ (less than or equal to), or ≥ (greater than or equal to).
To solve the compound inequality 4(x + 3) ≤ 0 or x + 1 > 3, we can first simplify the left-hand side of the first inequality:
4(x + 3) ≤ 0
4x + 12 ≤ 0
4x ≤ -12
x ≤ -3
Now we can solve the second inequality:
x + 1 > 3
x > 2
Therefore, the solution set for the compound inequality is all values of x that are less than or equal to -3 or greater than 2. This can be written in interval notation as:
(-∞, -3] ∪ (2, ∞)
Therefore, the two values that are in the solution set are -6 and 4, since both of these values satisfy at least one of the inequalities in the compound inequality.
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A sports scout for a team is looking for the more consistent player. The tables below represent points scored in one season by two different players.
Player A
3 rows
and 5 columns
10, 12, 6, 10, 13, 8, 12, 3, 21, 14, 7, 0, 15, 6, 16
Player B
3 rows and 5 columns
10, 3, 12, 26, 20, 24, 25, 26, 5, 48, 24, 18, 20, 27, 25
Compare the data in the tables. Which player should the scout choose? Explain your answer.
Answers
Based on the given information, the scout should choose Player A if they are looking for consistency.
What are range and standard deviation?
Range is the difference between the highest and lowest scores in the set.
Standard deviation measures how spread out the scores are from the mean.
To determine which player is more consistent, we need to look at the variability in their scores. One way to measure variability is to calculate the range and the standard deviation of each player's scores.
The smaller the range, the more consistent the player's scores are.
A smaller standard deviation indicates that the scores are closer together, which means the player is more consistent.
Using the data provided, we can calculate the range and standard deviation for both players:
Player A:
Range = 21 - 0 = 21
Standard deviation = 5.70
Player B:
Range = 48 - 3 = 45
Standard deviation = 10.89
From these calculations, we can see that Player A has a smaller range and a smaller standard deviation, which means that their scores are more consistent than Player B's. Therefore, the scout should choose Player A if they are looking for consistency.
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The double number line shows that Hiawatha, who is 24 2424 years old, is 75 % 75%75, percent as old as Itzel is. A double number line with 2 tick marks. The line labeled Age, years, reads from left to right: 0, 24. The line labeled Percentage, reads from left to right: 0 percent, 75 percent. A double number line with 2 tick marks. The line labeled Age, years, reads from left to right: 0, 24. The line labeled Percentage, reads from left to right: 0 percent, 75 percent. Complete the table to show different percentages of Itzel's age.
Answers
The double number line shows that Hiawatha is 75% as old as Itzel. This means that Hiawatha's age is 75% of Itzel's age. If we let Itzel's age be x, then Hiawatha's age is 0.75x.
What is double number line?A double number line is a visual representation of two related numerical quantities, such as distance and time or cost and quantity.
It consists of two parallel lines that are divided into equal segments or tick marks.
Each line represents one of the quantities, and the tick marks show the values or measurements of that quantity.
To complete the table showing different percentages of Itzel's age, you can choose different values of x and then calculate 75% of that value to find Hiawatha's age. For example:
If Itzel is 20 years old, then Hiawatha is 0.75 x 20 = 15 years old (since he is 75% as old as Itzel).
If Itzel is 40 years old, then Hiawatha is 0.75 x 40 = 30 years old.
If Itzel is 60 years old, then Hiawatha is 0.75 x 60 = 45 years old.
You can continue this pattern for different values of Itzel's age to complete the table.
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The double number line demonstrates that Itzel is 75% older than Hiawatha, who is 24 years old.
Itzel is 25% older than Hiawatha, who is 8 years old.
Itzel is 100% older than Hiawatha, who is 32 years old.
What is double number line?The visual representation of two linked numerical quantities, such as length and time or price and quantity, is called a double number line.
Two parallel lines that have been separated into equal pieces, or tick marks, make up the object.
The tick marks on each line denote the values or measurements of each quantity, and each line represents one of the quantities.
You can select various numbers of x and then multiply that number by 75% to determine Hiawatha's age in order to finish the table that displays various percentages of Itzel's age.
The double number line demonstrates that Itzel is 75% older than Hiawatha, who is 24 years old.
(24/3) = 8 => 25% of Itzel's age
(8*4) = 32 => 100% of Itzel's age
From the double number line
Age (years) Percentage
[24] 75% of Itzel's age
[ 8] 25% of Itzel's age
[32] 100% of Itzel's age
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The complete question is attached below,
. in a classroom of 30 students, 3 of the students wear wrist watches. (a) if 14 students are selected with replacement, what is the probability that exactly 2 of them wear wrist watches? (b) if 14 students are selected without replacement,
Answers
Probability of
=0.0403.
The probability that exactly two of the 14 students selected with replacement will wear wrist watches is 3/30 * 2/29 * 27/28 * 26/27 = 0.0437.
The probability that exactly two of the 14 students selected without replacement will wear wrist watches is 3/30 * 2/29 * 26/28 * 25/27 = 0.0403.
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A house plan has concrete stairs leading down into the garage. How much concrete is needed to make the stairs? 3 ft 2 ft 8 ft 5 ft [? ] ft ³ 2 ft 8 ft 1 ft
Answers
The amount of concrete needed to make the stairs that leads to the garage is 64 cubic feet
Calculating the amount of concrete needed to make the stairs?The missing information is added as an attachment
The concrete needed to make the stairs is the volume of the stairs and this is calculated using
Volume = Base area * Height
Where
Base area = 3 * 2 + 2 * 1
Base area = 8
And
Height = 8
So, we have
Volume = 8 * 8
Evaluate
Volume = 64
Hence, the amount needed is 64 cubic feet
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The circumference of a circle is 23π cm.
What is exact the area of the circle?
Do not round. Include correct units.
Show your process
Answers
Circumference = 2πr
where r is the radius of the circle.
We are given that the circumference of the circle is 23π cm, so we can write:
23π = 2πr
Dividing both sides by 2π, we get:
r = 23/2
Now we can use the formula for the area of a circle:
Area = πr^2
Substituting the value we found for r, we get:
Area = π(23/2)^2
Simplifying the expression inside the parentheses:
Area = π(529/4)
Multiplying by π:
Area = (529/4)π
So the exact area of the circle is (529/4)π square centimeters.
Assume you are rolling two fair dice once. The probability of obtaining at least one 3 or one 4 equals
Answers
The probability of obtaining at least one 3 or one 4 when rolling two fair dice can be calculated using complementary probability. First, find the probability of not rolling a 3 or 4 on each die, and then use this to determine the probability of the desired outcome.
For a single die, the probability of rolling a 3 or 4 is 2/6 (since there are 2 favorable outcomes out of 6 possible outcomes).
Therefore, the probability of not rolling a 3 or 4 on one die is 1 - 2/6 = 4/6 or 2/3.
When rolling two dice, the probability of not rolling a 3 or 4 on both dice is the product of their individual probabilities, which is (2/3) * (2/3) = 4/9.
Now, to find the probability of obtaining at least one 3 or one 4, we use the complementary probability:
Probability(at least one 3 or one 4) = 1 - Probability(neither die shows 3 or 4) = 1 - 4/9 = 5/9.
So, the probability of obtaining at least one 3 or one 4 when rolling two fair dice is 5/9.
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tabitha is renting a ballroom for an upcoming dinner reception. the rental fee for the ballroom includes a base price plus the cost of dinner per person. the table below shows the cost of the ballroom rental in relation to the number of people attending the dinner reception. no. of attendees 20 40 60 total rental cost $455 $615 $775 what is the base price for the ballroom rental?
Answers
The base price for the ballroom rental is $295.
Tabitha is renting a ballroom for an upcoming dinner reception. The rental fee for the ballroom includes a base price plus the cost of dinner per person. The table below shows the cost of the ballroom rental in relation to the number of people attending the dinner reception.
Table showing the relation between cost and attendee.The table shows that if 20 people attend, the total rental cost will be $455, and if 60 people attend, the total rental cost will be $775. Therefore, the increase in cost from 20 attendees to 60 attendees is $320. Thus, the difference between the cost for 20 attendees and the base price is $455 - (20 * cost of dinner per person), and the difference between the cost for 60 attendees and the base price is $775 - (60 * cost of dinner per person).Let b be the base price and c be the cost of dinner per person.
Therefore,
455 - (20c) = band775 - (60c) = b Subtracting the first equation from the second equation gives:
775 - (60c) - [455 - (20c)] = b320 = 40c, Therefore, c = 8.Substituting c = 8 into either of the equations above, we can find b:455 - (20c) = 455 - (20 * 8) = 295.
Therefore, the base price for the ballroom rental is $295.
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p(x) = 4x; Find p(-6)
Answers
p(x)= (x-4)²-(x-6)². ... 4X - 20 = 0 => X = 20/4 => X= 5.
Determine the surface area of the cylinder. (Use π = 3. 14)
net of a cylinder where radius of base is labeled 5 inches and a rectangle with a height labeled 4 inches
157 in2
219. 8 in2
282. 6 in2
314 in2
Answers
The surface area of the cylinder with radius 5 inches and rectangle with height 4 inches is equal to 282.6 square inches.
Radius of the base = 5 inches
Height of the rectangle = 4 inches
Surface area of a cylinder
= area of the top and bottom circular faces + the area of the curved surface.
Here,
Rectangle represents the curved surface of the cylinder, with a height of 4 inches and a length equal to the circumference of the base.
Circumference of the base is equal to,
Circumference
= 2πr
= 2 x 3.14 x 5
= 31.4 inches (approx.)
Area of the curved surface of the cylinder is ,
Curved surface area
= Length x Height
= 31.4 inches x 4 inches
= 125.6 square inches
Area of each circular face of the cylinder is ,
Circular face area
= πr²
= 3.14 x 5²
= 78.5 square inches
Substitute the value to get total surface area of the cylinder we have,
Total surface area of the cylinder
= 2 x Circular face area + Curved surface area
= 2 x 78.5 square inches + 125.6 square inches
= 282.6 square inches (approx.)
Therefore, the surface area of the cylinder is approximately equal to 282.6 square inches.
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solve the triangle PQR (find m
Answers
The length of r in the right triangle is 14.01 metres.
How to solve the side of a triangle?A right triangle is a triangle that has one of its angles 90 degrees. The sum of angles in a triangle is 180 degrees.
Therefore, let's find the side r of the right triangle as follows:
using Pythagoras's theorem,
c² = a² + b²
where
c = hypotenusea and b are the other legsTherefore,
r² = 6.71² + 12.3²
r² = 45.0241 + 151.29
r = √196.3141
r = 14.0112133664
r = 14.01 metres
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in 1996, a total of 40,257,000 taxpayers in the united states filed their individual tax returns electronically. by the year 2015, the number increased to 241,364,256. what is the geometric mean annual increase for the period? (round your answer to 2 decimal places.)
Answers
The information indicates that the correct answer is 9.76% annually.
What do you mean by geometric?The area of mathematics that deals with the characteristics of surrounding space, spatial interactions between distinct objects, and the shape of particular items.
It would take 19 years between 1996 and 2015 in all.
We are aware that the equation: gives a geometric mean of a collection of n positive numbers.
GM = [tex]((x1)(x2)(x3).............)^{1/n}[/tex]
This would provide us with the product of these values' nth roots.
Thus, the following would be the formula indicating rate of rise over time: -
GM = [tex](value at the end of the period / value at the start of the period)^{1/n} -1[/tex]
[value at the end of the period / value at the start of the period
Value at the conclusion of the time is equal to 241,364,256, hence the statement stands.
The initial value was 40,257,000.
n = 19
Using values, we obtain:
=[tex](241,364,256/40,257,000)^{1/19} -1[/tex]
= (5.995)1/19 - 1
= 0.0976
= 9.76% per year
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If a driver travels 40 mph, what is his ratio of miles to minutes?
Answers
If a driver travels at the speed of 40 mph, then the ratio of his speed in miles to minutes would be equal to 2/3 miles per minute.
The problem is based on simple conversion of units of speed from SI system to imperial system (it is named so because it was discovered in Britain). The speed of the driver is 40 mph that is 40 miles per hour. It means that to convert it into the ratio of miles and minutes, the relation between minutes to hours is to be known.
It is known that one hour is equal to 60 minutes. Therefore speed of driver is calculated as 40/60 miles per minute, which is equal to 2/3 miles per minute.
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in practice, the most frequently encountered hypothesis test about a population variance is a .
Answers
In practice, the most frequently encountered hypothesis test about a population variance is an F-test.
In statistics, hypothesis tests provide us with a tool to evaluate evidence about a population. Hypothesis testing is a crucial part of statistical inference, in which an analyst tests hypotheses using statistical methods such as t-tests, chi-squared tests, and analysis of variance (ANOVA).
In practice, the most commonly used hypothesis test for population variance is the F-test. This test can be used to test the null hypothesis that two population variances are equal. F-tests have a wide range of uses, including in quality control, financial analysis, engineering, and more. The F-test statistic is calculated by dividing the sample variance of one sample by the sample variance of another sample. The F-test requires that the data come from populations that follow normal distributions, and it is sensitive to outliers in the data.
Therefore, in practice, the most frequently encountered hypothesis test about a population variance is an F-test.
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.
There has been a 3% change in the money supply and a 1% change in velocity. In order to balance the exchange equation, what percentage of change needs to occur on the right side of the equation?
A. 1%
B. 4%
C. 7%
Answers
To balance the equation, the right side of the equation must also change by 4%.
What is equation?
An equation is a mathematical statement that asserts the equality of two expressions. It consists of two sides, a left-hand side (LHS) and a right-hand side (RHS), separated by an equals sign (=)
To balance the exchange equation, the percentage change on the left side of the equation [tex](\% \triangle M + \% \triangle V)[/tex] must equal the percentage change on the right side of the equation [tex](\% \triangle P + \% \triangle Q)[/tex].
Given that there has been a 3% change in the money supply [tex](\% \triangle M)[/tex] and a 1% change in velocity [tex](\% \triangle V)[/tex], the left side of the equation can be written as:
[tex]\%\triangle M + \%\triangle V = 3\% + 1\% = 4\%[/tex]
To balance the equation, the right side of the equation must also change by 4%. Therefore, the correct answer is:
B. 4%
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given the arithmetic sequence what is the domain for N?
Answers
The domain for n in the arithmetic sequence is the one in the first option:
all integers where n ≥1
What is the domain of N?We have a arithmetic sequence defined by the general formula:
aₙ = 4 - 3*(n - 1)
And we want to find the domain for the possible values of n that we can use in that formula.
Remember that the terms of a sequence are defined as:
a₁, a₂, a₃,...
So the values of n are positive whole numbers, in this case the first one is n = 1.
a₁ = 4 + 3*(1 - 1)
a₁ = 4
And then we can keep using any positive integer, then the correct option is:
all integers where n ≥1
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Determine whether the relation is a function (3,0),(6,-2),(2,-1),(-7,0)
Answers
Yes, this relation is a function and here the domain and range are:
domain = {3,6,2,-7} and range ={0,-2,-1,0}
Domain and Range:
The domain and scope of a function are part of the function. The domain is the set of all input values of a function, and the range is the possible outputs given by the function. Field → Function → Sequence. If there is a function f : A → B such that each element of set A corresponds to an element of set B, then A is the field and B is the codomain. The graph of an element "a" under a relation R is given by "b", where (a,b) ∈ R.
The scope of the function is the set of images. The domain and range of a function are usually expressed as:
Domain(f) = {x ∈ R: State} and range(f)={f(x): x ∈ domain(f)}
According to the Question:
The given function is:
{(3,0),(6,-2),(2,-1),(-7,0)}
It is a function as every input has a single output.
So, 3,6,2,-7 are the elements of the domain of the given relation.
Here domain = {3,6,2,-7} and range ={0,-2,-1,0}
Therefore, this relation is a function.
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The area of a square garden is 300 m². How long is the diagonal?
5√6 m
150 m
10√6 m
900 m
Answers
Answer:10root6
Step-by-step explanation:
Edgar built a deck in his backyard with a section in the shape of a rectangle and a section in the shape of a square the model shows the dimensions of his deck in feet
Answers
From the given information provided, the area of the deck Edgar built in his backyard is 192 square feet.
The area of rectangular section is :
Area of rectangle = length x width
Substituting the given values, we get:
Area of rectangle = 16 ft x 8 ft
Area of rectangle = 128 square feet
The area of square section is :
Area of square = side x side
Substituting the given value, we get:
Area of square = 8 ft x 8 ft
Area of square = 64 square feet
Therefore, the total area of the deck is the sum of the area of the rectangular section and the area of the square section:
Total area of deck = Area of rectangle + Area of square
Total area of deck = 128 square feet + 64 square feet
Total area of deck = 192 square feet
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pls answer quickly will give brainlyist
Answers
Answer:12/25=sind*cosd
3/5=sinc
4/5=sind
16/15=tand*cosc
Step-by-step explanation:
please mark brainliest
The ratio of boys to girls is 3:2, if the total number of children in the class is 35, how many boys are there?
PLSSS HELPP NOWW!!!!!
Answers
Answer:
21 boys
Step-by-step explanation:
girls 3+3=6+3=9+3=12+3=15+3=18+3=21
boys 2+2+2=6+2=8+2=10+2=12+2=14
3times 7=21
2 times 7 equals 14
so 21+14=35
A number is 12 greater than a second number. The sum of the two numbers is 66. What is the the smaller number?
Answers
Answer:
Step-by-step explanation:
The smaller number would be 27. If the first number is 12 greater than the 2nd number and we have to make it equal to 66. Our smaller number would be 27 becuase if we add 12 to 27 that gives us 39. 39+27= 66. Hopefully that makes sense.
Rewrite each equation in vertex form by completing the square. Then, give the key features revealed by both equations.
Question 7.
Answers
The vertex form of the equation is:
y = a(x - h)² + k, where a = 1, h = 1, and k = -16
How to explain the equationIt should be noted that to rewrite the equation in vertex form by completing the square, we first need to factor out the coefficient of x²:
y = x² - 2x - 15
y = (x² - 2x + 1) - 16
y = (x - 1)² - 16
Here, the vertex form of the equation is:
y = a(x - h)² + k, where a = 1, h = 1, and k = -16
The key features revealed by both equations are:
Vertex: The vertex of the parabola is (1, -16).
Axis of symmetry: The axis of symmetry is the vertical line x = 1.
Minimum/Maximum: Since the coefficient of x² is positive, the parabola opens upwards, and the vertex represents the minimum point of the graph.
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PLEASE HELP <3 Kelly walks from the 1st floor to the 5th floor. Avery walks from the 8th floor to the 4th floor. Which best describes the distance Kelly and Avery walk?
Avery walks a greater distance than Kelly.
B Kelly walks a greater distance than Avery.
C Kelly walks at a slower speed than Avery.
D Kelly and Avery walk the same distance.
Answers
Answer:
D. Kelly and Avery walk the same distance.
Step-by-step explanation:
Kelly walked from the 1st floor to the 5th floor. That means she walked 4 floors.
Avery walked from the 8th floor to the 4th floor.
8 - 4 = 4.
They walked the same distance, except Avery went down, and Kelly went up, which is unrelated.
you have been tracking how long you spend on each course subject during your homework sessions. you want to see what percentage each subject represents. which type of chart would be best for this purpose?
Answers
a pie chart would be an effective way to quickly and easily understand the distribution of time spent on different course subjects.
For visualizing the percentage distribution of different course subjects, a pie chart would be the most suitable type of chart. Pie charts are ideal for displaying the relative proportions of different categories or groups as slices of a circular pie. Each slice of the pie represents a proportion of the whole, which in this case would be the total time spent on all course subjects during homework sessions. The size of each slice will correspond to the percentage of time spent on each course subject. Therefore, a pie chart would be an effective way to quickly and easily understand the distribution of time spent on different course subjects.
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