3 years ago

Hi guys could some please help me answer this question???

Mathematics

1 answer:

qaws [65]3 years ago

8 0

Answer: the bottom one

Step-by-step explanation:

i think its the bottom one i did some math

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yulyashka [42]

Answer:

1) $10^{-1}$

2) $2^{-2}$

3) $12^{-2}$

Step-by-step explanation:

Using negative exponent rule:

1) one -tenth of kilometer =.1 = $\frac{1}{10}=10^{-1}$

Using negative exponent rule:

2) $\frac{1}{4} =\frac{1}{2^{2} }=2^{-2}$

Using negative exponent rule:

3) $\frac{1}{144} =\frac{1}{12^{2} }= 12^{-2}$

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3 years ago

Solve 2x+7=16 pls help meee

Black_prince [1.1K]

Answer:

5.5

Step-by-step explanation:

2x+7=16

-7 -7

2x=11

2x/2=11/2

x=5.5

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3 years ago

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noname [10]

Answer:

There is no explanation so I guess 1 to 1?

Step-by-step explanation:

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4 years ago

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It took Amari 2 hours to paint the first 14 feet of a 70 foot long fence. What percentage of the fence have they painted so far

umka21 [38]

Answer:

20%

Step-by-step explanation:

Divide

14/70 = 0.20

Convert from a decimal to a percent. You can multiply by 100 or move the decimal two places right.

0.20 x 100 = 20%

6 0

3 years ago

Find the length of side a in the right triangle if b=3 and c=5

JulsSmile [24]

A^2 + 3^2 = 5^2
a^2 + 9 = 25
a^2 = 16
a^2 = (square root)16
a = 4

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3 years ago