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Nimfa-mama [501]
3 years ago
10

Which value of a from the set {3, 4, 5, 6} makes this equation true? 2(a + 4) = 16

Mathematics
1 answer:
muminat3 years ago
5 0
B.) 4
just plug in for ex.
a. 2 ×(3+4)=2×7=14
b. 2×(4+4)=2×8=16
c. 2×(5+4)=2×9=18
d. 2×(6+4)=2×10=20
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Answer:

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Step-by-step explanation:

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<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute:                                        sin40° = 50/x
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  3. Divide sin40° on both sides:           x = 50/sin40°
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  5. Round:                                              x = 77.8 ft
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