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Oksanka [162]
3 years ago
8

Which equation shows a correct relation for triangle RSQ?

Mathematics
1 answer:
son4ous [18]3 years ago
4 0

Answer:

sinQ=cosR

Step-by-step explanation:

First we need to find out the measure of ∠R.

The sum of all the angles in a triangle add up to 180. Therefore:

∠Q+∠R+∠S=180

66+∠R+90=180

∠R=180-156

∠R=24°

Since ∠Q≠∠R, sinQ≠sinR. So the first option is incorrect - let's try the second one.

sinQ=cosR

sin66=cos24

0.9135454576=0.9135454576

So the second equation is the correct relation.

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dolphi86 [110]
TSplit  into prime factors

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Note 2*2*2*3*3*3   is a cube.
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State the operations used to solve the following equation 2x+8=9
jeka94

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3 0
2 years ago
Solve 2 1/2 divided by 5 1/3 = 8/x
ipn [44]
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We're dividing fractions, so we will flip the one in the denominator upside down and we will multiply it with the numerator.

\frac { \frac { 5 }{ 2 }  }{ \frac { 16 }{ 3 }  } \quad =\quad \frac { 5 }{ 2 } \cdot \frac { 3 }{ 16 } =\frac { 5\cdot 3 }{ 2\cdot 16 } =\frac { 15 }{ 32 }

Let's equal this too 8/x

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Divide both sides by 15.

\frac { 256 }{ 15 } =\frac { 15x }{ 15 } \\ \\ \frac { 256 }{ 15 } =x

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