Answer: Choice A) Slope = -1
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Explanation:
The two points given to us are (x1,y1) = (0,-2) and (x2,y2) = (2,-4)
Subtract the y coordinates
y2-y1 = -4-(-2) = -4+2 = -2
Subtract the x coordinates in the same order
x2-x1 = 2-0 = 2
Divide the two results to get the slope m
m = (y2-y1)/(x2-x1)
m = -2/2
m = -1
Step-by-step explanation:
I assume we are simplifying
1) -6k+7k = k
2) 12r-8-12 = 12r-20
3) n-10+9n-3 = 10n-13
4) -4x-10x = -14x
Answer:
a = 12 in
b = 8 in.
h = 6 in.
<u>plugin values into the formula:</u>
A = 1/2 h(a + b)
A = <u>(12 + 8) </u> x 6
2
A = 60 in²
In stead of 2,2 the point would be 1,1. Instead of -4,4 it would be -2,2 and instead of 6,8 it would be 3,4.
Answer:Obtain a systematic sample by selecting every 20th vehicle that passes (in any lane and going in any direction).
