40 I believe because the space of the auto mobile catching up to the train is 4 hours. 4 times 30 is 120 miles so u need to figure out a number that can reach 120 in three hours. 3 times 40 is 120
Given equation, y = – 1.3(x + 3)2 – 9 is in slope intercept form.
Step-by-step explanation:
Slope intercept form standard formula:
y = mx + c
where,
y= y intercept
x= x intercept
m = slope
c = constant
We are given:
y = - 1.3(x + 3)2 - 9
y = - 2.6x + 7.8 - 9
y = -2.6x -1.2
So,
Slope = m = -2.6
constant = 1.2
Lets go step by step and factor out each as we go
first lets factor out a 3 since 3 is common in 9 and 3
3(3ab^2 - abc)
now lets factor out a since its common in both
3a(3b^2 - bc)
now lets factor out a b since its common in both
3ab(b - c)
we can't factor anything else out so we are done.
Problem 1
<h3>Answers: n = 3 or n = 5</h3>
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Work Shown:
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Problem 2
<h3>Answers: c = 1 or c = -2/3</h3>
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Work Shown:
Answer:
The answer would be G.
Step-by-step explanation.
To get your answer, you have to pick two points. Ex: (0,4) (4,1)
Put them into the slop equation: slope= y2-y1/x2-x1
slope:1-4/4-0= -3/4
