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STatiana [176]
3 years ago
12

Find the equation of the para bola that has zeros of x = -2 and x = 3 and a y-intercept of (0,-30)

Mathematics
1 answer:
lana [24]3 years ago
7 0

Answer:

y = 5x^2-5x-30

Step-by-step explanation:

A parabola with x-intercepts at (-2,0) and (3,0) has the equation

y = a(x+2)(x-3)

where a is to be determined.

We know that it passes through the point (0,-30), so

-30 = a(0+2)(0-3) = -6a

Therefore solve for a to get

a = 5

y = 5(x+2)(x-3)

y = 5(x^2-x+6)

y = 5x^2-5x-30

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Vertical angles are equal

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5x - 3x = 8 + 40
2x = 48
x = 48/2
x = 24

m∠ABC = 3x + 8 = 3 * 24 + 8 = 80°

(or m∠ABC = 5x - 40 = 5 * 24 - 40 = 80°)
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Mike travels 13 miles per 2 hours on his bike.
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Answer:

It took Markus half an hour to drive home from work.  He averaged 34 miles per hour.  How far does Markus live from his work?

Solution

We are given that it takes 1/2 an hour for the trip.  This is a time:

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       r  =  34

We are asked how few he has traveled.  This is a distance.  We use the d=rt equation:

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Now try one by yourself.  If you want to see the answer, put your mouse on the yellow rectangle and the answer will appear.

Exercise 1

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Step-by-step explanation:

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3 years ago
What is the cost of 2 kilograms of flour if 3 kilograms cost $4.86 and the unit price for each packages of flour is the same
Pavlova-9 [17]
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Pleaseeeee help!!! 50 points and BRAINLIEST
pochemuha

Answer:

disagree

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