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damaskus [11]
2 years ago
11

Many gas stations give a discount for paying with cash instead of a credit card. William’s local gas station gives a discount of

$0.05 per gallon. He fills his car with 20 gallons of gas. How much will William save by paying cash instead of credit card?
Mathematics
1 answer:
sattari [20]2 years ago
5 0
0.05 x 20 = 1
William will be saving $1
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Step-by-step explanation:

25+17=42

25-17=8

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Question
kondor19780726 [428]

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Which rational exponent represents a square root?<br> A. 1 / 2<br> B. 3/2<br> C. 1/3<br> D. 1/4
Fofino [41]

Answer:

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Therefore, option A is correct.

Step-by-step explanation:

As we know that raising to the one-half power i.e. \frac{1}{2} is the same

as taking the square root.

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For example, taking the square root of 4 will determine:

4^{\frac{1}{2}}

\mathrm{Factor\:the\:number:\:}\:4=2^2

4^{\frac{1}{2}}=\left(2^2\right)^{\frac{1}{2}}

\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc},\:\quad \:a\ge 0

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so the expression becomes

4^{\frac{1}{2}}=2^{2\cdot \:\frac{1}{2}}

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so, 1/2 rational exponent represents a square root.

Therefore, option A is correct.

5 0
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