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gizmo_the_mogwai [7]

3 years ago

12

Select the sets that are not functions.

1 answer:

Kaylis [27]3 years ago

7 0

Answer:

D,E are not functions

Step-by-step explanation:

A function is a relation in which every input has not more than one output.But the output of the inputs may be same.Here in D the input 1 has 4 different outputs as 1,2,3,4.So its not a function.Similarly in E 6 has 2 outputs as 2 and -1.For remaining sets the inputs has only one output.so they are functions.

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Answer:

D. 84 ft^2

Step-by-step explanation:

Formula for area of a trapezoid:

$A=\frac{a+b}{2} h$

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The trapezoid shown has the following dimensions

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Using the following information we plug in the values into the formula

$A=\frac{9+12}{2} \\9+12=21\\\frac{21}{2} =10.5\\10.5*8=84$

Hence, the area of the trapezoid is 84ft² and your answer is D

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Answer:

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Step-by-step explanation:

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