3 years ago

Can someone simplify 9^-2.5?

Mathematics

1 answer:

tresset_1 [31]3 years ago

3 0

Answer: 1/243

Step-by-step explanation: To simplify the problem shown, our first step is to convert the decimal in the exponent, -2.5, to a fraction.

-2.5 is the same thing as -2 and 1/2 so we have 9^-2 and 1/2 and -2 and 1/2 is the same thing as -5/2 so we have 9^-5/2.

The rest of my work is attached in the image provided.

You might be interested in

Can you guys plz help ASAP

sasho [114]

The answer is D. They both had the same proportion.

Hope this helps!!!

7 0

2 years ago

The Honda CR-Z gets 37 miles per gallon on average. How much carbon dioxide would be emitted if the Honda were driven 400 miles?

Maksim231197 [3]

Divide 37 into 400 then you have ur answer

5 0

2 years ago

Read 2 more answers

A postage stamp is shaped like a rectangle with a perimeter of 88 millimeters. The length (x) is 10 millimeters less than twice

Oxana [17]

The answer would be D. It says the length is 10 millimeters less than TWICE the width, so it would be 10 millimeters greater than the original width.

5 0

3 years ago

The average distance in miles traveled in 1 hour if 660 miles<br> can be covered in 1.5 hours

Trava [24]

Answer:

The answer is 990 miles

Step-by-step explanation:

<h3><u>Given</u>;</h3>

Average distance in miles traveled in 1 hour if 660 miles.

Distance covered in 1.5 hours

Here,

1 hour = 60 minutes

1.5 hour = 1½ hour = 90 minutes

So,

660 + 660/2 = 660 + 330 = 990 miles

Thus, Distance covered in 1.5 hour is 990 miles

<u>-TheUnknownScientist 72</u>

3 0

2 years ago

Evaluate the expression 1^4 + 3(10 - 2)^2. Show your work.

andrey2020 [161]

Answer:

193

Step-by-step explanation:

8 0

2 years ago