3 years ago

Help please just answer these two please.

Mathematics

1 answer:

xenn [34]3 years ago

4 0

1= sometimes
2=B
i got you fam. be sure to make me braniest and friend me.

You might be interested in

Write 6.85• 10 to the 8th power in standard form

vagabundo [1.1K]

685,000,000 would be the right number. Hope this helps!

3 0

3 years ago

Read 2 more answers

Use special right triangle find the exact value of x. <br> X=?

swat32

Answer: 12

Step-by-step explanation:

3 0

3 years ago

Pls help me I don’t know what to do

aleksandrvk [35]

On what do u Need help on?

3 0

3 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

3 years ago

The temperature at 12 am was 44 degrees. The temperature dropped steadily for the next 8 hours to reach the daytime low of 20 de

adelina 88 [10]

Answer:

62 degrees

Step-by-step explanation:

Points (12,440 and (20,20)

Slope = -3

Equation of line: y - 44 = -3(x - 12)

Plug in x = 6 to get y = 62.

6 0

3 years ago