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Rus_ich [418]
3 years ago
15

A test is normally distributed with a mean of 70 and a standard deviation of 10. Todd

Mathematics
1 answer:
Damm [24]3 years ago
5 0

Answer:

negative

Step-by-step explanation:

calculating the z score by subtracting the mean and dividing by the standard deviation

(55-70)/10= -1.5

It's negative

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A circular rug has a radius of 3 ft. What is the circumference of the rug? Use 3.14 for Pi.
LenaWriter [7]

Answer:

18.84 ft

Step-by-step explanation:

2*3.14*3=18.84 ft

7 0
3 years ago
A rectangle school banner has a length of 44 inches, a perimeter of 156 inches , and an area of 1496 square inches. The cheerlea
Andrej [43]
Based on the lengths, the cheerleaders' banner is scaled down by a factor of 4.

So, 44 ÷ 4 = 11.

For the perimeter, 156 ÷ 4 is 39.

For the area, you have to do A=bh
(Area = base × height)

The base (length) is 11 inches, multiply that by two to get 22 inches which is the amount for both lengths. If the total perimeter is 39, you have to subtract 22 from that to get the remaining inches which is 17.
17÷2= 8.5 inches. The height is 8.5.

Now you can plug them in
A=bh
A=(11)(8.5)
A=93.5 in^2

The final answer is:
Area = 93.5 in^2
Length = 11 in
Perimeter = 39 in

I hope that helps!
7 0
3 years ago
Write an equivalent expression by distributing the "_" sign outside the parentheses: -k - (-6.2m+1)​
nevsk [136]

Answer:

-k + (6.2m - 1)

Step-by-step explanation:

You distribute the negative to everything in the parentheses and change the sign to addition.

3 0
3 years ago
Please help :) will give brainliest
zepelin [54]

Answer:

give me brainliest and then i will answer

Step-by-step explanation:

5 0
3 years ago
The closing prices of a common stock have been 61.5, 62, 61.25, 60.875 and 61.5 for the past week. what is the range?
SSSSS [86.1K]
Range=largest datum-smallest datum
=62-60.875
=1.125
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3 years ago
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