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3 years ago

Mhanifa please help! This is due soon and I dont want to fail

Mathematics

1 answer:

bearhunter [10]3 years ago

3 0

Answer:

Sum of interior angles is 180:

y = 180 - (42 + 31) = 107

The law of sines:

x / sin 107 = 11 / sin 42
x = 11 sin 107deg / sin 42deg
x = 15.72

The law of cosines:

cos 76 = (6² + 17² - x² )/2(6)(17)
204*0.24 = 325 - x²
x² = 325 - 48.96
x² = 276.04
x = √276.04
x = 16.61

Same as above:

2*9.4*10*cos 20 = (10² + 9.4² - x²)
176.66 = 188.36 - x²
x² = 188.36 - 176.66
x² = 11.7
x = √11.7
x = 3.42

Sum of interior angles is 180:

y = 180 - (52 + 94) = 34

The law of sines:

x / sin 34 = 15 / sin 94
x = 15 sin 34 / sin 94
x = 8.41

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2 years ago

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3 years ago

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3 years ago

The pyramid shown has a square base that is 1212 centimeters on each side. The slant height is 1818 centimeters. What is the sur

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Explanation :

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3 years ago

Convert 5 1/8 to a fractional notation

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3 years ago