3 years ago

Answer ASAP!!!!!!!!!

Mathematics

1 answer:

cupoosta [38]3 years ago

5 0

Answer:

0.4

Step-by-step explanation:

You might be interested in

Which expression represents the sum of 21 and an unknown number?

Inessa05 [86]

B. The variable d represents an unknown number. So, 21+d, is equal to 21+an unknown number.

3 0

3 years ago

Read 2 more answers

If sally drives to work 25% faster than she did yesterday, what would be her

dedylja [7]

Answer:

50 percent

Step-by-step explanation:

because sally was tried yesterday and went 25 percent faster today.

6 0

3 years ago

To cover his rectangular backyard, Will needs at least 170.5 square feet of sod.The length of Will’s yard is 15.5 feet.What are

Lostsunrise [7]

170.5/15.5= 11 feet

8 0

3 years ago

Scores on a test are normally distributed with a mean of 70 and a standard deviation of 11.5. find p81, which separates the bott

choli [55]

Answer: The score p81 that separates the bottom 81% from the top 19% is 80.12

Step by step:

First, calculate the "z" value. Z is a normally distributed random variable with 0 mean and standard deviation 1. The score value corresponding to the desired percentile p81 can be determined from a z value as follows:

$z=\frac{s-\mu}{\sigma}\\z_{p81}=\frac{p_{81}-70}{11.5}\\\implies p_{81}=z_{p81}\cdot 11.5+70$

We use a z-table (check online) to find the z value for the 81-st percentile. I found $z_{p81}=0.88$ and so we use that value to calculate the score for the percentile:

$p_{81}=0.88\cdot 11.5+70=80.12$

The score p81 that separates the bottom 81% from the top 19% is 80.12

4 0

4 years ago

192 fluid ounces equals how many pints?

MA_775_DIABLO [31]

There are 16 ounces in 1 pint. 192 divided by 16 = 12
The answer is 12

3 0

3 years ago

Read 2 more answers