Answer:
1. True
2. False
3. True
4. False
Step-by-step explanation:
A newsletter publisher believes that more than 47% of their readers own a personal computer. Is there sufficient evidence at the 0.05 level to substantiate the publisher's claim?
There is no sufficient evidence that we can use in order to substantiate the claim of the publisher,
How to write the hypothesisThe null hypothesis H0: p = 0.47
The alternative hypothesis is H1: p > 0.47
The question requires us to test the fact that more than 47 percent of the readers have their own personal computer. This is therefore the claim that is to be tested here.
There is no sufficient evidence to substantiate the claim because of the lack of certain details that would have been used to carry out the hypothesis test.
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Solve this equation for x.
4x+3=5x-4
Answer:
Step-by-step explanation:
X=7
If £22 = 500 rubles, how many £ are in 864 rubles? Give your answer to 2 dp.
Answer:
£ 38
Step-by-step explanation:
If you take 500 divided by 22 you get 22.7272727272 or if you round 22.73
Then you take 864 divided by 22.73 and get 38.0114386274 the you round to 2 decimal places and get 38
Hope this helps
GeneralGranato777
Can anyone help me with this?
Answer:
Link Is A Virus. Do Not Search! Have A Nice Day! Owa Owa! UwU
Step-by-step explanation:
Use the table to write the ratio of the total number of houses to the number of houses that painted green.
Color of Houses
Red
Green
Yellow
Blue
Number of houses
34
17
48
4
Answers:
103:34
103:17
17:103
34:17
34
Please show me step by step!
The ratio of the green houses to the the total number of houses is 17:103
What is a ratio?The quantitative relation between two amounts showing the number of times one value contains or is contained within the other. for example-"the ratio of computers to students is now 2 to 1"
Given here, The number of green houses as 17 and total number of houses altogether 103
Therefore the required ratio is 17:103
Hence, The ratio of the green houses to the the total number of houses is 17:103
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2. The students of a local high school operate the canteen at school to raise
funds for new furniture in the student lounge. Average sales of $245 per
month are needed to reach the goal. The sales for the first three months were
$190, $245, and $210. Since the sales appear to be too low, the students
predict that they will not reach their goal.
a) What were the average sales for the first three months, to the
nearest dollar?
Answer:
215
Step-by-step explanation:
you add all three together and then divide by three to get the average.
I need some help on the "round to the next period" part. What exactly is the answer then? Thank you!
The time period it will take a principal of $25000 to grow int $28500 at a rate of 4% is approximately 3 years
What is Compound InterestCompound interest is the interest that is calculated on the initial principal and also on the accumulated interest of previous periods. It is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on interest.
In the given question, our data is;
P = 25,000r = 4% = 0.04A = 28,500n = ?x = semi-annually = 2The formula is given as
A = P(1 + r/n)^nx
The given expression is
m(n) = 25000(1 + 0.04/ 2)^2n
m(n) = 28500
28500 = 25000(1 + 0.04 / 2)^2n
Solving for n,
n = 3.3
n ≈ 3
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When writing a number in scientific notation, why is it always written "X 10 to a power"?
Answer:
Because that is how you move the decimal point multiplying by ten will move the decimal pin to and the power tells you how many times and the direction
HOPE THIS HELPS
- Todo ❤️
Step-by-step explanation:
Awatch which loses a half a minute was set to read the correct time at 0445h on Monday. determine the time in 12 hour clock system,the watch will show on the following Friday at 1845h
The Correct answer is 5.50 p.m
ExplanationTime between Monday 0445h and Friday 1845h
= 4 x 24 + 14 = 110h
Time lost = 0.5 x 110
= 55min
Time shown in 12 hour system
1845 – 55 = 1750 h
= 5.50 p.m
What is a 12-hour Clock system?On an analogue clock, the 12-hour clock is most frequently displayed as the digits 1 through 12; on a digital clock, it is typically followed by either a.m. (ante meridiem, Latin for "before noon") or p.m. (post meridiem, Latin for "after noon").
What is a 24-hour Clock system?Digital clocks are more frequently used to display the 24-hour clock, which is printed in a 4-digit format with the first two numbers denoting the hour and the final two denoting the minutes.
No need for a.m. or p.m. is necessary because each time represents one of the 24 hours in a day. For instance, 0300 is the third hour of the day, or 3am; 1400 is the fourteenth hour of the day, or 2pm; and 1830 is the thirty-minute mark after the eighteenth hour of the day, or 6.30pm.
How can we change 12-hour time format into a 24-hour clock format?Children can be taught to add 12 to the hours after noon in order to change a 12-hour clock to a 24-hour one. For instance, 3pm becomes 15:00 since 3 + 12 = 15.
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The time shown on 19:45h Fridays is 06: 55 pm Friday.
What is meant by clock system?A collection of synchronized clocks that can communicate with one another and display the exact same time every single time is known as a clock network or clock system. A constant pulse known as a system clock or system timer aids the computer clock in maintaining accurate time. It keeps track of how many seconds have passed since the epoch and utilizes that information to determine the current date and time.
A piece of electronic equipment inside a computer that continuously emits a high-frequency signal to keep everything in sync. electrical gadget type. a piece of equipment that operates electronically. a computerized time-of-day clock.
Given: Watch loses = 1/2 minute every hour
Time difference = 19: 45 h Friday - US:45 h Monday
=4 days 14 hours
=24 × 4+14 hours
=96+14
=110 hours
Time lost [tex]$= & 144^{55} \times \frac{1}{2} \mathrm{~min} \\[/tex]
= 55 min
Time shown on 19:45h Fridays
= 19: 45 - 0: 55
= 18: 55 h Friday
= 06: 55 pm Friday
Hence, 06: 55 pm Friday
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Plsss helppp
100 points extra and brainleist
NO LINKS
Answer:
Not sure if this is right but 2.
Step-by-step explanation:
Subtract 37,746ft (at 60 second mark) by 9,872ft (at 30 second mark) and as it asks for per second, 37,746-9,874=27,872 27,872/30= 929.1
Use the number line to find the difference of 4 1/2-8
Using the number line, the difference between 4 1/2 and 8 will come to -31/2.
What is a number line?A number line is a depiction of a graded straight line that serves as a visual representation of real numbers in primary mathematics. Every point on a number line is presumed to be a real number, and every real number is assumed to be a point.
Subtraction on a number line makes it much easier to subtract smaller values. When subtracting numbers from a number line, we must leap (move) to the left side of the number line.
Thus, moving to the left, 8 times from 4.5 will help us arrive at -3.5. See attached Number line.
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Jane had 27 stickers two weeks ago. Then she bought stickers every day for two weeks. She bought 3 stickers two weeks ago, and on each day after that, Jane bought two more stickers than she had bought on the previous day. How many stickers does Jane have now
Answer:
Jane has 251
Step-by-step explanation:
Stickers Initially = 27 Jane bought stickers on 1st day = 3 Remaining days = 13 Each next day she bought 2 more stickers than the previous day, so: Stickers bought in the last 2 weeks (14 days) = n+(n+2)+(n+2+2)+(n+2+2+2)+.............+(n+2(13))here n =3 So:Stickers bought in the last 2 weeks (14 days) = 3+5+7+9+11+13+15+17+19+21+23+25+27+29Stickers bought in the last 2 weeks (14 days) = 224 At Present Jane has Total Stickers = Stickers Initially+ Stickers bought in the last 2 weeks (14 days)At Present Jane has Total Stickers = 27+224
2, 3, -4, -6, -8
From the list of numbers, write down:
(a) three numbers whose sum is -12
(b) two numbers whose product is -24
I believe this is correct.
A is: -4, -6, 2
B is: -4, 6
2x3x5 is equivalent to which number below
Answer:
180
Step-by-step explanation:
2 squared is 4
3 squared is 9
4 x 9 x 5 = 180
PLEASE HELP I AM DESPERATE I WILL GIVE THANKS, 5 STARS, AND THE BRAINLIEST!!!
Answer:
g(-3) = 2
Step-by-step explanation:
g(x) = |x| - 1, x < 1 You would use this equation for finding g(-3). Since -3 is less than 1.
g(x) = |x| - 1, x < 1 ← You can ignore the x<1 part.
g(-3) = |-3| - 1 Input the value -3 as x. The absolute value of x is always g(-3) = 3 - 1 positive.
g(-3) = 2 Simplified
Next,
g(x) = x²- 10, 1 ≤ x ≤ 3 You would use this equation for finding g(3). Since 3 is equal to 3.
g(x) = x²- 10, 1 ≤ x ≤ 3 ← You can ignore the 1 ≤ x ≤ 3 part.
g(3) = (3)²- 10 Input the value 3 as x.
g(3) = 9 - 10 Simplify
g(3) = - 1
Then,
g(x) = [tex]\frac{1}{6}[/tex]x, x > 3 You would use this equation for finding g(6). Since 6 is greater than 3.
g(x) = [tex]\frac{1}{6}[/tex]x, x > 3 ← You can ignore the x > 3 part.
g(6) = [tex]\frac{1}{6}[/tex](6) Input the value 6 as x.
g(6) = [tex]\frac{6}{6}[/tex] Simplify
g(6) = 1
Answer: g(-3) = 2 results in the largest value/output.
Here is the other one.................
Answer:
2+2sec2∅tan²∅-sec⁴∅-tan⁴∅2+2sec2∅tan²∅-sec⁴∅-tan⁴∅)2-(sec⁴∅-2sec∅tan∅+tan⁴∅)2-(sec²∅-tan²∅)²2-(1)²1 is a required answer.[Note sec²x-tan²x=1]
GIVING BRAINLEST Which table represents the statement “A car is traveling at a rate of 60 miles per hour”? A 2-column table with 3 rows. Column 1 is labeled hours with entries 1, 2, 3. Column 2 is labeled miles with entries 60, 30, 10. A 2-column table with 3 rows. Column 1 is labeled hours with entries 1, 2, 3. Column 2 is labeled miles with entries 60,61, 62. A 2-column table with 3 rows. Column 1 is labeled hours with entries 1, 2, 3. Column 2 is labeled miles with entries 60, 65, 70. A 2-column table with 3 rows. Column 1 is labeled hours with entries 1, 2, 3. Column 2 is labeled miles with entries 60, 120, 180. HURRY I WILL FAIL
Answer:
im not shere but i think its D on ege
Step-by-step explanation:
Find the value of x.
2x-8
6
Answer:
[tex]x=7[/tex]
Step-by-step explanation:
Angles opposite congruent sides in a triangle are congruent.
[tex]6=2x-8 \\ \\ 2x=14 \\ \\ x=7[/tex]
solve for x. solve for x.
Answer:
x=3
Step-by-step explanation:
Assuming both are congruent,
5x-8 = 2x+1
+8 +8
5x=2x+9
-2x -2x
3x=9
x=3
Need answer for b)iii)
Answer:
3.23, -1.23
Step-by-step explanation:
Draw the line y=1
See where it intersects x^2-2x-3
The x coordinates of the intersections are your answer
what coordinates apply to y>2+9x
The coordinates that can be applied to the equation y > 2 + 9x is the cartesian coordinate system
What is cartesian coordinate system?
A system that identifies your precise location on a graph is the Cartesian coordinate system.
This system can be used to graph a collection of points that will give your equations' solutions, which makes it handy. Each axis will have its own variable in the equations that are employed with this system.
The x-axis, a horizontal axis, and the y-axis, a vertical axis, are the two axes that make up the Cartesian coordinate system.
The variables x and y will be present in equations for lines in this system.
Hence the cartesian coordinate system is applicable for the equation given as y > 2 + 9x
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ILL GIVE BRAINLIEST TO WHOEVER HELPS ME!
Answer:
I believe that the answer is C
Step-by-step explanation:
A balloon ascending at a rate of 12 ft/s is at a height of 80 ft above the ground when a package is dropped. How long does it take the package to reach the ground
The time taken by the package to reach the ground will be 5.45 seconds.
What governs motion, according to Newton?The motion of an object is related to the forces acting on it by Newton's laws of motion. According to the first law, unless a force acts on an object, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction forces upon one another.
Solution:-
vo=12m/s
h=80m=yo
Then,
[tex]y-yo= vot-1/2gt^2[/tex]
⇒[tex]0-80m=(12m/s)t - 1/2(9.8m/s^2)t^2[/tex]
⇒[tex](4.9m/s^2)t^2-(12m/s)t-80m=0[/tex]
⇒[tex](4.9m/s^2)t^2-(12m/s)t-80m=0[/tex]
⇒[tex]t=5.45s, t=-3.00s[/tex]
∴[tex]t=5.45s[/tex]
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A refrigerator is priced at $3,800 plus value-added tax at 15%. What amount does the refrigerator actually cost the customer?
Answer: 3800 + 15% =.....DUN DUN DUNNNN 3.800.15
Step-by-step explanation:
Find the value of x.
Use statement and reason format.
By using properties for angles we can find and solve some linear equations, there we can see that x = 30°.
How to find the value of x?Remember that the sum of the interior angles of a triangle must give 180°, and we also know that the angle defined by a line is 180°.
Let's define N as the angle located at vertex N of the right triangle in the left side, we then can write:
2x + 90° + N = 180°
And we also can write the linear equation:
105° + 45° + N = 180°
Solving this one, we can find the value of N.
N = 180° - 45° - 105° =30°
N = 30°
Replacing that in the equation with x we will get:
2x + 90° + 30° =180°
2x = 180° - 90° - 30°
2x = 60°
x = 60°/2 = 30°
The value of x is 30°.
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NEED HELP ASAP
Find the approximate area of a triangle that has vertices at A(-4, 2), B(6, 4) and C(3,-1).
Answer:
I need more to the question so I can answer it
Step-by-step explanation:
Show what you know: Exponents
Find the missing exponent exponent.
32 = 2?
? =
Help LOL I don’t understand
Answer:
D
Step-by-step explanation:
What grade is 2 step equations?
Teaching two step equations is a standard that needs to be taught in both 7th and 8th grade middle school PreAlgebra Math.
What is a 2 step equation?Two step equations are algebraic equations that can be solved in exactly two steps and gives the final answer of the variable in two steps. Generally two step equations are of the form ax + b = 0 where a and b are real numbers.
How do we solve 2-steps equation?A two-step equation is an equation that requires two steps to solve. We must eliminate any constant that is on the same side as the variable first. To solve first use the inverse operations to isolate the variable by itself. We can do only one operation in single step.
Now
we solve two steps equation in grade 7th and 8th.It is very easy to understand.
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In the figure below the measure of arc AD = 110∘. What is the measure of ∠A in degrees? (4 points) 55 90 70 35
Answer:
35
Step-by-step explanation:
180 - 110 = 70
Arc DB= 70
70 / 2 = 35