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Verizon [17]
3 years ago
5

The elevation of city A is 72 feet above sea level; the elevation of city C is 24 feet above sea level. The elevation of city D

is 1 over 4 of the elevation of city C.
Part A: Write an expression to represent the elevation, in feet, of city D. (5 points)

Part B: Simplify the expression and explain why the answer is negative or positive. (5 points)
Mathematics
2 answers:
Anettt [7]3 years ago
6 0
Part A :
D = (1/4) * C D = 1/4 * 24 D = 24/4 = 6 ft above sea level
Part B :
Your answer is positive because D is still above sea level...if it would have been below sea level, then it would have been negative
kari74 [83]3 years ago
4 0

Answer:

Part A :

D = (1/4) * C D = 1/4 * 24 D = 24/4 = 6 feet above sea level

Part B :

Your answer is positive because D is still above sea level. If it would have been below sea level, then it would have been negative .

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Answer:

Option (b) is correct.

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Step-by-step explanation:

Given: (2^\frac{1}{4} )^4

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Using property of exponents, (a^m)^n=a^m\times a^m\times a^m\times ....\times (n\ times)

We have,

(2^\frac{1}{4} )^4=2^\frac{1}{4} \times 2^\frac{1}{4}\times 2^\frac{1}{4}\times 2^\frac{1}{4}

Again applying property of exponents  a^m\times a^m=a^{n+m}

We have,

(2^\frac{1}{4} )^4=2^{(\frac{1}{4}+ \frac{1}{4}+ \frac{1}{4}+ \frac{1}{4} )}

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

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

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