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pantera1 [17]
4 years ago
7

Which expression is equivalent to 3⁴ . 3-⁹

Mathematics
2 answers:
grigory [225]4 years ago
5 0

Answer:

3^-5 or 1/3^5(b)

Step-by-step explanation:

3⁴•3^-9

When bases are same powers are to be added

So the above expression becomes

3^4+(-9)

3^4-9

3^-5

elena-s [515]4 years ago
3 0

Answer:

b. 1/3⁵

Step-by-step explanation:

When multiplied with same base, powers add up

3⁴ × (3^-9) = 3^(4-9)

= 3^(-5)

To make the power positive, take it in the denominator

= 1/3⁵

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Answer:

The park ranger bought 2 redwood trees and 10 spruce trees.

Step-by-step explanation:

24 * 2 = 48

208 - 48 = 160

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7 0
3 years ago
Are -2x + 9 = 7 and 2x = 2 equivalent?​
DochEvi [55]

Answer:

Yes because the answer to both of them is 1

Step-by-step explanation:

Let's solve your equation step-by-step.

−2x+9=7

Step 1: Subtract 9 from both sides.

−2x+9−9=7−9

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Step 2: Divide both sides by -2.

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Answer:

x=1    

Let's solve your equation step-by-step.

2x=2

Step 1: Divide both sides by 2.

2x

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Answer:

x=1

 

7 0
3 years ago
What does 100 × 30% equal I'm a bit confused
oksian1 [2.3K]

Answer:

30

Step-by-step explanation:

30% in a calculator is .3

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3 0
3 years ago
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