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3 years ago

12

P=4k-10 p=50 wout out the value of k

1 answer:

kenny6666 [7]3 years ago

3 0

P = 4k - 10

subtitute p = 50 to the equation:

50 = 4k - 10
4k - 10 = 50 |add 10 to the both sides
4k = 60 |divide both sides by 4

k = 15

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Step-by-step explanation:

Given

I will answer this question using the attached triangle

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In trigonometry:

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Solving (b): Sine and Cosine B

In trigonometry:

$Sin \theta =\frac{Opposite}{Hypotenuse}$ and

$Cos \theta =\frac{Adjacent}{Hypotenuse}$

So:

$Sin \angle B =\frac{AC}{BA}$

Substitute values for AC and BA

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$Sin \angle B =\frac{6}{10}$

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Substitute values for BC and BA

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$Cos \angle B=\frac{8}{10}$

$Cos \angle B=0.80$

Using a calculator:

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So:

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$Sin(37^{\circ}) = 0.60$ --- approximated

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