All categories

3 years ago

Does 3 to the 2 power plus 3 to the 3 power equal 3 to the 5 power? Please Explain!

1 answer:

4 0

No because if you do the math, 3 to the power of 2 you get 9 and if you do 3 to the power of 3 you get 27. However when you do 3 to the power of 5 you get 243. Add 27 and 9 and you get 36 which is not 243.

You might be interested in

Last year your school had 1200 students enrolled, this year your school has135% of that amount enrolled. how many students are e

iren2701 [21]

1200 = 100%
35% of 1200 = 420
1200 + 420 = 1620

There are 1620 students enrolled this year.

7 0

3 years ago

A man wants to paint his room with an area of 515 square feet. He mixses the following paints to make a shade of green

larisa [96]

About 3 gallons of blue paint will be needed because if you add 175+175 it equals 350 and then add another 175 it equals 525.

6 0

3 years ago

A survey of 80 randomly selected companies asked them to report the annual income of their presidents. Assuming that incomes are

Artyom0805 [142]

Answer:

The 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

Step-by-step explanation:

The information provided is:

$n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%$

The critical value of z for 90% confidence level is, 1.645.

Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)$

Thus, the 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

This interval implies that there is 90% probability that the true mean annual income of all company presidents is within this interval.

4 0

2 years ago

What value of x is in the solution set of 4x – 12 < 16 + 8x? -10 -9 -8 -7

Akimi4 [234]

Answer:

Step-by-step explanation:

4x - 12 ≤ 16 + 8x

4x - 8x ≤ 16 + 12

- 4x ≤ 28

x ≥ - 7 or [ - 7, ∞ )

3 0

2 years ago

15/21 equals 10/e Solve for the missing value Can someone help please ??

Paul [167]

Answer:

e=14

Step-by-step explanation:

15/21 =10/e

by cross multiplying,

e×15=21×10

15e=210

e=210/15

e=14

7 0

3 years ago