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4 years ago

Write an equation in slope-intecept form for the line that passes through (8,-1) and is perpendicular to y=-4x-7

1 answer:

3 0

Hello:
the equation is : y = ax+b
the slope is a : a×(-4) = -1......( perpendicular to a line with a slope of 4)

a= 1/4

: y = (1/4)x + b

the line that passes through (8, -1) : -1 = (1/4)(8)+b
b =-3
the equation is : y = (1/4)x-3

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Vinvika [58]

Answer:

Sin 2 (30)°= $\frac{\sqrt{3} }{2}$

Step-by-step explanation:

Explanation:-

Given that Sin 2 (30)°

we know that the formula sin2θ = 2sinθ cosθ

Given that θ = 30°

Now

sin2(30)° = 2sin30° cos30°

$= 2 ( \frac{1}{2} X \frac{\sqrt{3} }{2} )$

After cancellation, we get

Sin 2 (30)° = $\frac{\sqrt{3} }{2}$

Final answer:-

Sin 2 (30)° = $\frac{\sqrt{3} }{2}$

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dedylja [7]

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---

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