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Flauer [41]
3 years ago
9

Find the lengths of the missing sides of the 30°-60°-90° triangle. a=? ft, b=? ft, c=12 ft

Mathematics
1 answer:
Agata [3.3K]3 years ago
7 0
You know the long leg<span> (the </span>side<span> across from the </span>60<span>-degree angle). Divide this </span>side<span> by the square root of 3 to </span>find<span> the short </span>side<span>. Double that figure to </span>find<span> the hypotenuse. </span>Finding<span> the other </span>sides<span> of a </span>30-60-90 triangle<span> when you know the hypotenuse.</span>
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2 years ago
Solve the system of equations using the substitution method.
Firdavs [7]

y = -1 + 3/8x

2x - 5y = 6

Substitute the first equation into the second equation, since y is already by itself.

2x - 5(-1 + 3/8x) = 6

2x + 5 - 15/8x = 6

2x - 15/8x = 1

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Plug x into either of the equations.

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y = -1 + 3

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3 years ago
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S_A_V [24]

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Step-by-step explanation:

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From -4 to 4 is postivite 8 and from 8 to 4 its -4

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Step-by-step explanation:

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Answer:

D.

Step-by-step explanation:

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75/10 = 7.5

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