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3 years ago

BRAINLIEST!!!

2 answers:

6 0

If all the sides are doubled, then the surface area
is multiplied by (2²) = 4 times as great.

That would be 320 m² .

irina1246 [14]3 years ago

6 0

Answer:

320 lol

Step-by-step explanation:

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Find the value of x in the equation without evaluating the power

Y_Kistochka [10]

Step-by-step explanation:

a)2^8=256

2^5*2^x=2^8

5+x=8

x=8-5

x=3

b)(1/3)^6

(1/3)^2*(1/3)^x=(1/3)^6

2+x=6

x=6-2

x=4

therefore the value of x in a is 3

and the value of x in b is 4

hope it helps u...pls mark it as the brainliest answer..

3 0

3 years ago

Morgan spent $30 on school supplies. He

mestny [16]

To help solve this problem, create an equation.

Let x = number of notebooks

$30 = $22.50 + $1.50x. Subtract $22.50 from each side.

$7.5 = $1.50x. Divide each side by $1.50.

5 = x.

Morgan bought 5 notebooks.

5 0

3 years ago

Combine like terms.

Ivahew [28]

The answer is going to be c because 12-35=23 and since there is variables you have to add the variable.

5 0

3 years ago

Read 2 more answers

The length of a phone conversation is normally distributed with a mean of 4 minutes and a standard deviation of 0.6 minutes. Wha

Arlecino [84]

The z-score for 5 minutes is found from:
$z=\frac{X-\mu}{\sigma}
$
$z=\frac{5-4}{0.6}=1.667$
Reference to a normal distribution table shows that the cumulative probability for a z-score of 1.667 is around 0.9522.
Therefore the probability that a conversation lasts for longer than 5 minutes is:
1 - 0.9522 = 0.048 to 3 d.p.

8 0

4 years ago

Read 2 more answers

$28 lunches; 15% tip

nikklg [1K]

Answer: $4.20 tip

Step-by-step explanation:

15% of 28 is 4.2

Using a calculator, you can find the value of the tip by multiplying 0.15 by 28.

6 0

3 years ago

Read 2 more answers