3 years ago

Can someone please help me? I will mark Branliest if you do it for me

Mathematics

1 answer:

Georgia [21]3 years ago

5 0

Answer:

sorry in middleschool so cant help but if i did know i would love to help

Step-by-step explanation:

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Christy works in a building that is 880 feet tall. She wants to know the height of the building in miles and write it in decimal

vovangra [49]

Answer: 0.166667 miles

Step-by-step explanation:

8 0

2 years ago

The standard deviation of a sample taken from population A is 17.6 for a sample of 25.

lawyer [7]

Answer:

The standard deviation of the sample mean differences is _5.23_

Step-by-step explanation:

We have a sample of a population A and a sample of a population B.

For the sample of population A, the standard deviation $\sigma_A$ is

$\sigma_A = 17.6$

The sample size $n_A$ is:

$n_A = 25$ .

For the sample of population B, the standard deviation $\sigma_B$ is

$\sigma_B = 21.2$

The sample size $n_B$ is:

$n_B = 30$ .

Then the standard deviation for the difference of means has the following form:

$\sigma=\sqrt{\frac{\sigma_A^2}{n_A}+\frac{\sigma_B^2}{n_B}}$

Finally

$\sigma=\sqrt{\frac{17.6^2}{25}+\frac{21.2^2}{30}}\\\\\sigma= 5.23$

7 0

4 years ago

Solve –19 = x – 4. Question 9 options: A) x = –15 B) x = –23 C) x = –76 D) x = 25

AveGali [126]

Answer:

A.) x = -15

Step-by-step explanation:

-19+4 = x

x = -15

4 0

2 years ago

Is 14/15 bigger than 4/5

liraira [26]

Answer:

Yes

Step-by-step explanation:

Multiply 4/5 so that they have a common denominator.

14/15 > 12/15 (4/5)

8 0

3 years ago

Read 2 more answers

Please help with this question

lisov135 [29]

(x-12)(x-12) would factor to x²-24x+144.

(x-12)(x+12) = x²+144

Option C is correct :)

4 0

4 years ago

Read 2 more answers