24000000 in standard form

9/16= what to the power of 2

Damm [24]

The answer to this is 3/4.

3 0

4 years ago

Someone pls help! 3x ^2 and x = 10 pls help!

otez555 [7]

Answer:

300

Step-by-step explanation:

Because of PEMDAS (Order of Operations), you would do the exponent first.

So, 3(x)^2 and 3(100)

Then you get 300

Hope this helps!

7 0

2 years ago

Read 2 more answers

The mean area of homes in a certain city built in 2009 was 2438 square feet. Assume that a simple random sample of 11 homes in t

mr Goodwill [35]

Answer:

The p-value of the test is 0.029.

Step-by-step explanation:

The mean area of homes in a certain city built in 2009 was 2438 square feet.

An insurance company wants to know if the mean area of homes built in 2010 is less than that of homes built in 2009.

This means that at the null hypothesis we test if the mean is the same as in 2009, that is:

$H_0: \mu = 2438$

At the alternate hypothesis, we test that if it is less, than is;

$H_a: \mu < 2438$

The test statistic is:

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.

2438 is tested at the null hypothesis:

This means that $\mu = 2438$

Assume that a simple random sample of 11 homes in the same city built in 2010 had a mean area of 2,293 square feet, with a standard deviation of 225 square feet.

This means that $n = 11, X = 2293, s = 225$

Value of the test statistic:

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{2293 - 2438}{\frac{225}{\sqrt{11}}}$

$t = -2.14$

Compute the P-value of the test.

Probability of finding a mean less than a value(in this case, 2293) is a one-tailed test.

The pvalue is found for a one-tailed test, with t = -2.14 and 11 - 1 = 10 degrees of freedom. With the help of a calculator, the pvalue of the test is of 0.029

The p-value of the test is 0.029.

7 0

3 years ago

At green deli employees earn double time for any hours worked in addition to their usual 40-hour week. Ester Klein worked 43 hou

topjm [15]

For the 40 hour week, they would be paid 40 multiplied by 9 which is 360. For the additional 3 hours they would be paid 18 dollars an hour, because its double.18 multiplied by 3 is 54. 360 + 54= 414. The answer is $414

7 0

4 years ago

Read 2 more answers

In the first week of a diet program, eight women lost an average of 3 pounds each. What was the total weight change for the eigh

Vladimir [108]

Answer:

The total weight change for the eight women was -24.

Step-by-step explanation:

In order to find the answer, you have to consider that average is calculated by dividing the total weight change by the number of women and you know that the average was they lost 3 pounds and there were 8 women:

Average= total weight change/number of women

-3=total weight change/8

total weight change=-3*8

total weight change=-24

According to this, the answer is that the total weight change for the eight women was -24.

5 0

3 years ago