OMG PLEASE HELP ME SOMEONE
Practice 1: DE is congruent to BC. Find the measure of arc BC.​

Hence, the force that results has a magnitude of about 10.3 newtons (rounded to the nearest 10th of a newton).

"How much of a quantity" is the definition of magnitude. For instance, the amount of data can be utilized for assessing the speeds of a car and a bicycle. In addition, it can be used to express how far an object has come or how much weight it carries relative to its size.

The law of cosines, which connects a triangle's sides and angles, can be used to calculate the size of the resulting force:

A2 + B2 - 2ab*cos = C2 (C)

We can define the 8.6 newtons in this case as side a, the 3.5 newtons as side b, and the angle between them as C:

a = 8.6 N b = 3.5 N

C = 58°

By applying the law of cosines, we may determine the length of the resultant force or side c.

c = sqrt(105.36)

c ≈ 10.3

Hence, the force that results has a magnitude of about 10.3 newtons (rounded to the nearest 10th of a newton).

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There were 90 grapes in the container at first.

What is the percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.

Let's assume that there were x grapes in the container at first.

Arianna ate 0.45 of the grapes, which means she ate 0.45x grapes.

Alex ate 35% of the grapes, which means he ate 0.35x grapes.

The total number of grapes eaten is the sum of what Arianna and Alex ate:

0.45x + 0.35x = 0.8x

This means that 0.8x grapes were eaten, and the number of grapes left is x - 0.8x = 0.2x.

We know that there were 18 grapes left, so we can set up an equation:

0.2x = 18

Solving for x, we get:

x = 90

Therefore, there were 90 grapes in the container at first.

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Answer:

It's 45.

Step-by-step explanation:

Same as the last question :)

The area of a right triangle is given by the formula:

Area = 1/2 * base * height

Substituting the values given in the problem:

Area = 1/2 * 45 meters * 16 and 3/4 meters

To simplify the computation, we convert the mixed fraction 16 and 3/4 to an improper fraction:

16 and 3/4 = (16 * 4 + 3) / 4 = 67/4 meters

Substituting this value, we get:

Area = 1/2 * 45 meters * 67/4 meters

Simplifying:

Area = 843.75 square meters

Therefore, the area of the right triangle is 843.75 square meters.

Answer: 376 7/8

Step-by-step explanation: if you multiply the base and the height you'll get 754 3/4 since this is a triangle we are talking about it would be halved which would make it 376 7/8.

and im doing the exam and its correct.

Therefore , the solution of the given problem of triangle comes out to be C is an 80-degree angle.

If a polygon has at least one additional segment, it is a hexagon. Its structure is a simple rectangle. Something like this can only be distinguished from a regular triangular form by edges A and B. Euclidean geometry only creates a portion of the cube, despite the precise collinearity of the borders. A triangular has three sides and three angles.

Here,

We can use the knowledge that a triangle's total angles equal 180 degrees to determine the missing angle measurements in the given triangle.

Angle A:

=> Angle A = 180 - (90 + 45) = 45 degrees

Angle B:

=> Angle B = 180 - (90 + 35) = 55 degrees

Angle C:

=> Angle C = 180 - (45 + 55) = 80 degrees

As a result, the triangle's sides' measurements are as follows:

=> A is a 45 degree angle.

=> B is a 55 degree angle.

=> C is an 80-degree angle.

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Answer:

  Horace

Step-by-step explanation:

You want to know if "base" refers to any particular side of a rectangle.

The formula for the area of a rectangle can be written ...

  Area = base × height

It can also be written ...

  Area = length × width

In each formula, the factors of the area refer to orthogonal dimensions of the rectangle. Any side of the rectangle can be considered to be the "base" or the "length" or the "width" or the "height". The other factor in the area formula is whatever dimension is orthogonal to that choice.

The commutative property of multiplication tells you that you get the same product if you reverse the order of the numbers.

So, you could have ...

  Area = AB·BC

or

  Area = BC·AB

If you insist that the fist of these numbers is the "base", then the base can be either AB or BC and the area will be the same.

The substitution property of equality tells you that you can substitute any equal values. Opposite sides of a rectangle are equal length, so either can be substituted for the other. In short, you can write the product for the area any of 8 ways:

  Area = AB·BC = AB·AD = BC·AB = AD·AB

  = CD·AD = CD·BC = AD·CD = BC·CD

If you want to distinguish between AB and BA, you can write this many more ways.

Horace seems to understand the fundamental interchangeability of the dimensions in the area formula. Horace has the right idea.

Bernice seems more attached to one particular understanding. We wonder what Bernice would call the "base" if the rectangle were drawn at a different angle to the grid.

The given graph is an illustration of a piecewise linear equation.

Jamie correctly described what the graph could be used for (a relay race)

Jamie wrongly described the axes of the graph, in both sections

The piece-wise function is: [tex]y=\left \{ {{\frac{1}{12}x, 0 < = x < 12} \atop {\frac{1}{8}x+\frac{1}2},12 < x < =20}} \right.[/tex]

See the attachment for the graph and Jamie's work

From the graph, we have:

Time (minutes) = x

Distance (miles) = y

(a) When the runner begins the race

From the graph, we have:

x=[0,12]

y=[0,1]

This means that the runner runs a distance of 1 mile in 12 minutes

So; Jamie's description here is wrong because he misrepresented the axes.

The equation of this part is calculated as follows:

Start by calculating the slope (m)

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{1-0}{12-0}=\frac{1}{12}[/tex]

The equation is then calculated using:

[tex]y=m(x-x_1)+y_1\\\\y=\frac{1}{12}(x-0)+0\\\\y=\frac{1}{12}x[/tex]

(b) When his partner takes over

From the graph, we have:

x=(12,20]

y=(1,2]

This means that his partner runs a distance of 1 mile in 8 minutes

So; Jamie's description here is also wrong because he misrepresented the axes, again.

The equation of this part is calculated as follows:

Start by calculating the slope (m)

[tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{2-1}{20-12}=\frac{1}{18}\\\\y=\frac{1}{8}(x-12}+1\\\\y=\frac{1}{8}x-\frac{1}{2}[/tex]

Hence, the piece-wise function can be represented as:

The piece-wise function is: [tex]y=\left \{ {{\frac{1}{12}x, 0 < = x < 12} \atop {\frac{1}{8}x+\frac{1}2},12 < x < =20}} \right.[/tex]

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If someone says they will meet you again in 31 days on a Monday, then that meeting would occur on a week day of Thursday. so, the correct answer is E).

To determine the day of the week that is 31 days from a Monday, we can use the fact that there are seven days in a week. Since 31 is not evenly divisible by 7, we cannot simply add or subtract a certain number of days to find the day of the week.

Instead, we must use modular arithmetic. Specifically, we can take the remainder of 31 divided by 7, which is 3. This means that after 31 days, we will be three days ahead of Monday, so the day will be Thursday. Therefore, the day of the week that is 31 days from a Monday is Thursday. So, the correct option is E).

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The work required to pump the water out of the hemispherical tank is 5,930,818.125 ft-lb.

To find the work required to pump the water out of the hemispherical tank, we need to consider the following steps:
Step 1: Determine the volume of the hemispherical tank.
The formula for the volume of a hemisphere is (2/3)πr³,

where r is the radius.

Given the radius is 13 ft, we can calculate the volume as follows:
Volume = (2/3)π(13³)

= (2/3)π(2197)

= 14603.86 ft³.
Step 2: Calculate the weight of the water in the tank.
Given the water weighs 62.5 lb/ft³, we can determine the weight of the water in the tank by multiplying the volume by the water weight:
Water weight = Volume × Weight/ft³

= 14603.86 ft³ × 62.5 lb/ft³

= 912741.25 lb.
Step 3: Determine the average height at which the water must be pumped out.
Since the tank is hemispherical, the average height for pumping the water is half the radius (13 ft).

So, the average height is:
Average height = 13 ft ÷ 2 = 6.5 ft.
Step 4: Calculate the work required to pump the water out of the tank.
Work = Weight × Distance × Force of gravity.

where Force of gravity = 1 (as we're working with pounds and feet, the force of gravity is already accounted for).
Work = 912741.25 lb × 6.5 ft × 1 = 5930818.125 ft-lb.

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The triangles are similar by SAS similarity and the similarity statement is ΔABC ~ ΔPQR.

We can determine the similarity of the triangles by checking if they satisfy the conditions of AA, SAS, or SSS similarity.

AA Similarity: If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

Looking at the triangles, we can see that angle A is congruent to angle P, and angle B is congruent to angle Q. However, we cannot conclude that the triangles are similar by AA similarity because we do not know if the third pair of angles are congruent.

SAS Similarity: If two pairs of sides of one triangle are proportional to two pairs of sides of another triangle, and the included angles are congruent, then the triangles are similar.

Looking at the triangles, we can see that:

AB is proportional to PQ (since AB/PQ = 4/5)

BC is proportional to QR (since BC/QR = 3/4)

Angle BAC is congruent to angle QPS (since they are vertical angles)

Therefore, the triangles are similar by SAS similarity. The triangle similarity statement is:

ΔABC ~ ΔPQR (by SAS similarity)

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If the median of a set of scores is greater than the mean, then the distribution will be option (c) It is positively skewed.

The relationship between the median and mean of a distribution can give an indication of the shape of the distribution. If the median is lower than the mean, it suggests that the distribution is positively skewed.

Option a) It is leptokurtic refers to the degree of peakedness of the distribution, which is not directly related to the relationship between the median and mean.

Option b) It is platykurtic refers to a distribution that has less peakedness than a normal distribution, which is also not directly related to the relationship between the median and mean.

Option d) It is negatively skewed is the opposite of the correct answer and suggests that the median is higher than the mean, indicating a negatively skewed distribution.

Therefore, the correct option is (c) It is positively skewed.

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The given question is incomplete, the complete question is:

If the median of a set of scores is lower than the mean, what does that suggest about the shape of the distribution?

Group of answer choices

a) It is leptokurtic

b) It is platykurtic

c) It is positively skewed

d) It is negatively skewed

1.  Perimeter of AARG = 1.6 × 4.4 cm = 7.04 cm

2.  The measure of SBH is 162°.

3. Area of AARG = 2.56 × 0.8 cm² = 2.048 cm²

4. The length of the circumference of circle B is approximately 13.01 cm.

The circumference of a this double shape's perimeter is its total length. In other terms, it is the total length of all a shape's sides. For instance, the circumference of a circle is equal to the distance around its outside, or circumference, whereas the perimeter of a rectangle may be computed by combining the measurements of all four sides.

To solve this problem, we can use the fact that all circles are similar. This means that corresponding lengths of the circles are proportional. In particular, if the ratio of the radii of two circles is k, then the ratio of their circumferences is also k, and the ratio of their areas is k².

Let's start with finding the radius of the larger circle. Since OB/OA = 2.25, we can write:

OA + AB = OB

OA + 1 = 2.25 OA

OA = 1 / 1.25 = 0.8

Therefore, the radius of the larger circle is 0.8 cm. Since the circles are similar, the ratio of the radii is 0.8/0.5 = 1.6.

1. The perimeter of ABSH is proportional to the radius of the circle, so we have:

Perimeter of ABSH = 1.6 × Perimeter of AARG = 1.6 × 4.4 cm = 7.04 cm

2. Let x be the measure of SBH. Then we have:

RAG + SBH + HBS = 360°

108° + x + 90° = 360°

x = 162°

Therefore, the measure of SBH is 162°.

3. The area of ABSH is proportional to the square of the radius of the circle, so we have:

Area of ABSH = 1.6² × Area of AARG = 2.56 × 0.8 cm² = 2.048 cm²

4. The circumference of circle B is proportional to the radius of the circle, so we have:

Circumference of circle B = 1.6 × Circumference of circle A ≈ 1.6 × 8.13 cm ≈ 13.01 cm

Therefore, the length of the circumference of circle B is approximately 13.01 cm.

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Volume of the award is 510.25 square centimeter.

Volume is a measure of the amount of space that a three-dimensional object occupies. It is a physical quantity that is typically measured in cubic units, such as cubic meters (m³) or cubic centimeters (cm³).

The volume of an object is calculated by multiplying its three dimensions together. For example, the volume of a rectangular prism can be calculated by multiplying its length, width, and height. The formula for the volume of a rectangular prism is V = l x w x h, where V is the volume, l is the length, w is the width, and h is the height.

Given;

Height of the conical part, h=12cm

Radius of the conical part, r=5cm

Height of the cylindrical part, H=2.5cm

Total volume of award=Volume of conical part+ Volume of cylindrical part

=πr²h/3+πr²H

=π×5²×12/3+π×5²×2.5

=314+196.25

=510.25cm²

Hence, volume of the award is 510.25 square centimeter.

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Answer:

tanx= -1 is the correct answer.

Since the cost of each card is $ [tex]0.56[/tex], you can now multiply the total number of cards by the cost per card. the value of the inventory at the end of the month is $ [tex]343.28[/tex].

To find the value of the inventory at the end of the month, you need to start by calculating the total number of birthday cards that Marika's Cards and Gifts had at the end of the month.

First, you need to add the number of birthday cards that Marika's sold during the month (208) to the number of cards received from the distributor in two separate orders) [tex](144 \times 2) = 288[/tex]

[tex]117[/tex] (initial inventory) + [tex]208[/tex] (cards sold) +  [tex]288[/tex] (cards received from distributor) =  [tex]613[/tex] (total number of birthday cards at the end of the month)

Since the cost of each card is $0.56, you can now multiply the total number of cards by the cost per card to get the value of the inventory:

[tex]613 \times[/tex] $[tex]0.56 =[/tex] $[tex]343.28[/tex]

Therefore, the value of the inventory at the end of the month is $343.28.

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a. The direction vector of the line given by x=1/3+2t, y=3-2/3t is (2,-2/3).

The point on the line by setting t=0, gives us the point (1/3,3).

b. The direction vector of the line given by r=(1/3,1/2)+t(1/3-1/4) is

(1/12,0).

The a point on the line by setting t=0  gives us the point (1/3,1/2).

c. The direction vector of the line given by r=(1/2,3)+t(-1/2,5) is  (-1/2,5).

The point on the line by setting t=0, which gives us the point (1/2,3).

A vector is described as a term that refers colloquially to some quantities that cannot be expressed by a single number, or to elements of some vector spaces.

The vector equation defines the placement of the line or a plane in the three-dimensional framework.

The vector equation of a line is r = a + λb, and the vector equation of a plane is r x n = d.

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Value of hypotenuse x in the triangle is 9.4.

A trigonometric function is a mathematical function that relates the angles of a triangle to the ratios of the sides of the triangle. The sine, cosine, and tangent functions—abbreviated as sin, cos, and tan, respectively—are the three most used trigonometric operations. Other trigonometric functions include the cosecant (csc), secant (sec), and cotangent (cot) functions. These functions are used extensively in mathematics, science, and engineering to model periodic phenomena, such as sound and light waves, and to solve problems related to geometry and trigonometry.

Given triangle is right angled triangle.

base of triangle=8

hypotenuse of triangle=x

Using trigonometric function,

Cosθ=base/Hypotenuse

For θ=30°,

Cos32°=b/h

cos32°=8/x

x=8/cos32°

x=8/0.84

x=9.4

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Ariel got a job at a restaurant and needed to purchase 2 shirts and 2 pairs of pants.

Let's use the variable "x" to represent the number of shirts Ariel buys and "y" to represent the number of pants she

buys.

Then, we can write the following system of inequalities:

2 ≤ x ≤ ∞ (Ariel needs at least 2 shirts)

2 ≤ y ≤ ∞ (Ariel needs at least 2 pairs of pants)

7.50x + 18y ≤ 150 (Ariel wants to spend no more than 150)

Now, we can graph the system of inequalities on a coordinate plane to find the feasible region, which represents all the possible combinations of shirts and pants that satisfy the given constraints.

The feasible region is shaded in the graph below:

graph {(150-7.5 × x)/18}

As you can see from the graph, the feasible region is a quadrilateral with vertices at (0, 8.33), (2, 7), (8, 3), and (25, 0).

This means that Ariel can buy any combination of shirts and pants within this region and still meet her requirements.

To find the optimal solution, we can simply check the corner points of the feasible region and see which combination gives us the most value for our money.

For example, if Ariel buys 2 shirts and 2 pants (i.e., the point (2, 2) on the graph), she will spend:

7.50(2) + 18(2) = 51

This is within her budget of 150 and meets her requirement of at least 2 shirts and 2 pants.

Therefore, the answer is: Ariel should buy 2 shirts and 2 pairs of pants.

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Using the intersecting chords theorem the value of x is 4.

What is chord?

It is the straight line segment that intersects the circle at two points, and it can be of any length or orientation, as long as it lies entirely within the circle.

According to question:17) Using the intersecting chords theorem, we have:AJ * BJ = CJ * DJ

Substituting the given values, we get:

9 * 8 = 6 * CD CD = (9 * 8) / 6CD = 12

Therefore, CD = 12.18)

Again, using the intersecting chords theorem, we have:

AJ * BJ = CJ * DJ

Substituting the given values, we get:

x * (x + 5) = (x + 2) * (x + 2)

Expanding the right-hand side, we get:

x² + 5x = x² + 4x + 4Subtracting x² and 4x from both sides

, we get:x = 4

Therefore, the value of x is 4.

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Answer:

To find the percentage of residents who participated in the recycling drive, we need to divide the number of participants by the total number of residents and then multiply by 100 to get the percentage. Total number of residents in Percy's town = 5,320 + 1,680 = 7,000 Number of residents who participated = 5,320 Percentage of residents who participated = (Number of participants / Total number of residents) x 100 = (5,320 / 7,000) x 100 = 76% Therefore, 76% of the residents of Percy's town participated in the recycling drive.

Answer:

The correct answer is 76%.

Step-by-step explanation:

To find the percentage of Percy's town that participated in the recycling drive, we must divide the number of people that participated by the total number of residents.

To do this, we should first find the total number of residents. Since residents either participated or did not participate, the total number of residents is the sum of these two values. This is modeled below:

Total number of residents = 5,320 + 1,680 = 7,000 total residents

Now, we can continue with the percentage calculation.

% participation = # of participants/# of residents * 100

% participation = 5,320/7,000 * 100

% participation = 76%

Therefore, we can conclude that 76% of Percy's town participated in the recycling drive.

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Therefore, the equation of the line passing through (0, -3) and (5, -3) is y = -3.

An equation is a mathematical statement that shows the equality between two expressions. It typically consists of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. The expressions on both sides of the equation are separated by an equals sign (=) and can be manipulated in various ways to find the value of the variable(s) that satisfies the equation.

Here,

To find the equation of the line passing through two points (x₁, y₁) and (x₂, y₂), we can use the point-slope form of a linear equation, which is:

y - y₁ = m(x - x₁)

where m is the slope of the line.

In this case, the two points are (0, -3) and (5, -3), so we have:

x₁ = 0, y₁ = -3

x₂ = 5, y₂ = -3

The slope of the line can be found using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

Substituting the values, we get:

m = (-3 - (-3)) / (5 - 0)

m = 0 / 5

m = 0

Since the slope m is zero, the line is a horizontal line.

To find the equation of the line, we can use the point-slope form with one of the points, say (0, -3). Substituting the values, we get:

y - y₁ = m(x - x₁)

y - (-3) = 0(x - 0)

y + 3 = 0

y = -3

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The number of possible license plates is  2,176,782,336

To calculate the number of possible Nebraska license plates with 6 characters, we will use the counting principle.

Each character can either be a number (0-9) or a letter (A-Z). There are 10 possible numbers and 26 possible letters. So, for each character,

there are [tex]36 (10 + 26)[/tex]possibilities.
Now, we will apply the counting principle to find the total number of combinations. The counting principle states that if there are n ways to do one thing and m ways to do another, there are n * m ways to do both.
In our case, there are 6 characters on the license plate, and each character has 36 possible options.

Therefore, the number of possible license plates is:
[tex]36 * 36 * 36 * 36 * 36 * 36 = 36^6 = 2,176,782,336[/tex]
There are 2,176,782,336 possible Nebraska license plates with 6 characters, each filled with a number (0-9) or a letter (A-Z).
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Answer: 8

Step-by-step explanation:

The 30-foot distance between single-family residences in the Desert Vista subdivision is called a "setback" in development terms.

This setback ensures that the neighborhood maintains adequate spacing between homes for privacy, safety, and aesthetics.

The distance between single-family residences in the new Desert Vista subdivision in Mesa is known as the "setback" in subdivision development terms.

Setbacks are regulations that define the minimum distance a building, such as a single-family residence, must be located from property lines or other structures.

These regulations ensure adequate spacing between buildings for various reasons, including privacy, safety, and aesthetics.
1. The student question mentions that the distance between single-family residences in the new Desert Vista subdivision in Mesa is 30 feet.
2. In subdivision development terms, such a distance is referred to as a "setback."
3. Setbacks are important for maintaining privacy, safety, and aesthetics in a neighborhood.
4. These regulations ensure that there is enough space between buildings, preventing overcrowding and allowing for proper ventilation, sunlight, and access to emergency services.
5. Setbacks vary depending on the type of structure and local zoning laws, which determine the minimum distance required between buildings.

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[tex] \:\:\:\:\:\:\longrightarrow \sf \underline{V_{(cylinder) } = \pi\:r^2\:h \: cubic \:units }\\[/tex]

Where -

As per question, we are given that-

Now that, we are given all the required values, so we can put all the values into the formula and solve for the height -

[tex] \:\:\:\:\:\:\longrightarrow \sf \underline{Volume _{(cylinder) } = \pi\:r^2\:h }\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf 1800= 3.14 \times \bigg(7\bigg)^2 \times h\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf 1800 = 3.14 \times 7\times 7\times h\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf 1800 =3.14 \times 49 \times h\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf 1800 =153.86\times h\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf 153.86\times h=1800\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf h = \dfrac{1800}{153.86}\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf h = 11.69894...........\\[/tex]

[tex] \:\:\:\:\:\:\longrightarrow \sf \underline{ h =11.69\: inch }\\[/tex]

Therefore, the length of height [tex] \sf \underline{ \pink{11.69\: inch }}\\[/tex]

Answer:

y = 23 degrees

Step-by-step explanation:

115° and 5y° are equal because they are alternate exterior angles

115 = 5y

Divide by 5 to isolate the y

23 = y

so y is 23°

Celine has already knitted 0.8 meters. Her final result should be 1.2 meters.

To calculate how many meters Celine has to knit we should subtract the already knitted length of scarf from the entire length. This give the equation:

[tex]x=1.2m-0.8m[/tex]

x is the unknown

x = 0.4 meters

Answer:

The answer is 22

Step-by-step explanation:

You would first start by solving for the x value. You would do 6x-7=2x+5, then start factoring out number and variable until the variable is on 1 side and the number are on the other, so it'd be 4x=12. After you would calculate for the x which is 3, which you did, then you would plug that back into the values. You'd plug 3 into 2(x)+5 which simplifies down to 6+5 which is 11 and since DB is half of AB you multiply by 2 to get 22.