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Damm [24]
2 years ago
12

Help pls i am being timed on a quiz

Mathematics
1 answer:
Dahasolnce [82]2 years ago
5 0

In analyzing the given diagram which is a combination of two right angle triangle, the value of sin∠L is 5/13.

<h3>What is the value of sin∠L?</h3>

Given that angle ONM is a right angled triangle, we can find length of OM using the Pythagorean theorem.

c = √( a² + b² )

OM = √( 4² + 3² )

OM = √( 16 + 9 )

OM = √25

OM = 5

Next, angle OML is also a right angled triangle, we can get the hypotenuse LO.

c = √( a² + b² )

LO = √( OM² + ML² )

LO = √( 5² + 12² )

LO = √( 25 + 144 )

LO = √169

LO = 13

Now, to get sin∠L, we use the mnemonic: SOHCAHTOA

sinθ = opposite / hypotenuse

sin∠L = OM / LO

sin∠L = 5/13

Therefore, in analyzing the given diagram which is a combination of two right angle triangle, the value of sin∠L is 5/13.

Learn more about Pythagorean theorem here: brainly.com/question/343682

#SPJ1

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4 years ago
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Answer:

y=\frac{1}{6} (x-4)-\frac{9}{2}

Step-by-step explanation:

∵ The quadratic equation form is :

y = [1/2(b - k)] (x - a)² + (b + k)/2

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∵ The focus is (4 , -3) and directix is y = -6

∵ y=\frac{1}{2(-3-(-6))} (x-4)^{2}+\frac{(-3)+(-6)}{2}

∴ y=\frac{1}{6} (x - 4)^{2}+\frac{-9}{2}

∴ y=\frac{1}{6} (x-4)-\frac{9}{2}

another way:

Assume that (x , y) is the general point on the parabola

∵ The distance between the directrix and (x , y) = the distance between the focus and (x , y)

By using the distance rule:

∵ (y - -6)² = (x - 4)² + (y - -3)² ⇒ (y + 6)² = (x - 4)² + (y + 3)

∴ y² + 12y + 36 = (x - 4)² + y² + 6y + 9

∴ 12y - 6y = (x - 4)² + 9 - 36

∴ 6y = (x - 4)² - 27 ⇒ ÷ 6

∴ y = 1/6 (x - 4)² - 9/2

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because 4 * 2 is in parenthesis, that means you multiply 8x by them.

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