3 years ago

I xant solve for the value of K

Mathematics

1 answer:

exis [7]3 years ago

4 0

K = -3x^2/5 -5x -3 + px/5. I hope that helps.

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Aleks [24]

Answer:

? = 56.

Step-by-step explanation:

In the problem, the side 20 corresponds to side 32 and side 20 + 35 corresponds to side 32 + ?.

$\frac{20}{32} =\frac{20 + 35}{? + 32}$

$\frac{5}{8} =\frac{55}{? + 32}$

$\frac{1}{8}=\frac{11}{? + 32}$

? + 32 = 8 * 11

? + 32 = 88

? = 56.

Hope this helps!

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3 years ago

How do you evaluate sin(13π/12)?

Alekssandra [29.7K]

13pi/12 lies between pi and 2pi, which means sin(13pi/12) < 0

Recall the double angle identity,

sin^2(x) = (1 - cos(2x))/2

If we let x = 13pi/12, then

sin(13pi/12) = - sqrt[(1 - cos(13pi/6))/2]

where we took the negative square root because we expect a negative value.

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3 years ago