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3 years ago

Variation equation and determine the quantity indicated.

Mathematics

1 answer:

mr_godi [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Direct variation has the form y=kx, given k=7 and x=20

y=7(20)=140

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A line has this equation: y = -2x-5 Write an equation for the parallel line that goes through (-3,-5).

zhuklara [117]

Answer:

Step-by-step explanation:

y + 5 = -2(x + 3)

y + 5 = -2x - 6

y = -2x - 11

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3 years ago

On a map 1/4 inch = 50 miles. If two cities appear 3 inches apart, how many

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Step-by-step explanation:

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3 years ago

A 6-pound bag of birdseeds cost $4.92. What is the unit price?

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3 years ago

Urgent, please i will give brainliest

Ne4ueva [31]

Answer:

1. $\frac{\sqrt{13} }{3}$

2. 3.2362

3. $\frac{60}{11}$

Step-by-step explanation:

Cot is the trigonometric ratio defined by "adjacent" over "opposite". So, adjacent = 2 and opposite = 3.

By pythagorean theorem, we have the "hypotenuse" as $\sqrt{2^2+3^2}=\sqrt{13}$

Csc is defined as the trig ratio "hypotenuse" over "opposite". We know the sides, so Csc $\theta$ = $\frac{\sqrt{13} }{3}$

First answer choice is right.

By definition, Csc $\theta$ is the inverse of Sine $\theta$ . If given the value of sin theta, to find value of csc theta, we take the reciprocal of it. Hence:

$Csc\theta=\frac{1}{0.3090}\\=3.2362$

Third answer choice is right.

By definition tan and cot are inverse of each other. So the value of tan is the reciprocal of the value of cot. We can simply "flip" the value of tan theta to get the value of cot theta. Hence:

$Cot\theta=\frac{60}{11}$

Third answer is right.

3 0

3 years ago

Read 2 more answers