3 years ago

27^-2/3 A. 9 B. 1/9 C. -1/9 D. -9

Mathematics

1 answer:

geniusboy [140]3 years ago

5 0

27^-2/3
= (3^3)^-2/3
= 3^-2
= 1/3^2
= 1/9

answer
B. 1/9

You might be interested in

Stu hiked a trail at an average rate of 3 miles per hour. He ran back on the same trail at an average rate of 5 miles per hour.

Andrews [41]

3t = 5(3-t)
3t = 15 - 5t
3t + 5t = 15
8t = 15
t = 15/8
t = 1 7/8

7/8 * 60 mins = 52.50 minutes

t = 1 hour and 52.5 minutes

It took Stu 1 hour and 52.5 minutes to hike the trail one way.

3 0

3 years ago

Read 2 more answers

Please help and explain

Sonja [21]

Find out how much over the 10 years whatever it says and then use that to explain if it's worth is

3 0

3 years ago

Help What is the slope of the line on the graph?

Galina-37 [17]

Slope = (Y2-Y1) / (X2-X1)
hope that's helpful

6 0

3 years ago

Use the Order of Operations to evaluate this expression

Doss [256]

Unfortunately, I don’t knooow :(

5 0

3 years ago

Rewrite the rational exponent as a radical by extending the properties of integer exponents.

maks197457 [2]

Answer:

$\sqrt[4]{2}$

Step-by-step explanation:

This was right on my test. I completely guessed so I don't really have an explanation.

6 0

3 years ago