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yanalaym [24]
3 years ago
11

H E L P P L E A S E ! ! !

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0

1. The slope of the ramp is √145

2. The pitch of the roof is √10

3. The grade is the road is √ 10064

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The vertex of the parabola below is at the point (1.-3). Which of the equations below could be the one for this parabola?
Ilia_Sergeevich [38]

Answer: Choice D. y = (x-1)^2 - 3

The vertex is (h,k) = (1,-3). So h = 1 and k = -3.

We have a = 1 as the leading coefficient.

Plug those values into the equation below

y = a(x-h)^2 + k

y = 1(x - 1)^2 + (-3)

y = (x - 1)^2 - 3

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The value of a car decreases by 20 percent per year. Mr.Sing purchases a 22,000 automobile.What is the value of the car at the e
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c

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3 years ago
By how much does the dependent variable change in response to a change of 1 unit of the independent variable?
dalvyx [7]

Answer: C) 5

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x = independent variable, y = dependent variable

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An alternative is to use the slope formula to get

m = (y2 - y1)/(x2 - x1)

m = (25 - 15)/(4 - 2)

m = 10/2 <--- this expression shows up again

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So we see that the slope formula is a more drawn out method to finding the answer.

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The answer is x≤-4/7

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hope thia helps

Brainliest????

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