3 years ago

Solve for c........:

Mathematics

1 answer:

boyakko [2]3 years ago

8 0

C= -18
Hope this helps!

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olga2289 [7]

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Answer:

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Step-by-step explanation:

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3 years ago

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Find AC and BC. Answers: 14.94 13.46 11.10 10 Please help.

anzhelika [568]

Step-by-step explanation:

Use Sine rule.

$\frac{ac}{ \sin(b) } = \frac{ab}{ \sin(c) } \\ \frac{ac}{ \sin(90) } = \frac{10}{ \sin(42) } \\ ac \sin(42) = 10 \sin(90) \\ ac = \frac{10 \sin(90) }{ \sin(42) } \\ ac = 14.9 \: units \: (3s.f)$

Angle A + angle B + angle C = 180 (sum of angles in triangle)

Angle A + 90 + 42 = 180

Angle A + 132 = 180

Angle A = 180 - 132

= 48

$\frac{bc}{ \sin(a) } = \frac{ab}{ \sin(c) } \\ \frac{bc}{ \sin(48) } = \frac{10}{ \sin(42) } \\ bc \sin(42) = 10 \sin(48) \\ bc = \frac{10 \sin(48) }{ \sin(42) } \\ = 11.1units (3sf)$

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3 years ago

Will mark as Brainliest.

Flauer [41]

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3 years ago

How to solve 3x - 4 = 11+10

Mamont248 [21]

Answer:

x= 25/3 or 8.333333

Step-by-step explanation:

you add 11 to 10 to get 21

3x-4=21

add 4 to both sides, which will cancel out the (-4)

3x=25

divide each term by 3 to get x by itself

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you will then get x=25/3

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3 years ago

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Digiron [165]

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Step-by-step explanation:

I had this question on flocabulary.

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4 years ago