It could travel 2/10 of a mile in one second because 1/10x2= 2/10
Answer: C:How many members are in the band when no one is absent.
Step-by-step explanation:
this is the answer for khan academy .i just got the answer wrong and looked at which one was right
7 x 10^1 = 70
7 x 10^2 = 700
7 x 10^3 = 7000
<h3>
Answer: B) y = -5x+5</h3>
slope = -5, y intercept = 5
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Explanation:
The given equation has slope 1/5. We can see that by comparing it to y = mx+b, with m as the slope.
Flip the fraction and the sign to go from 1/5 to -5/1 = -5. The perpendicular slope is -5. We can stop here since only choice B has such a slope.
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If you're curious about finding the y intercept, then you would use m = -5 along with (x,y) = (2,-5) to find the value of b
y = mx+b
-5 = -5(2)+b
-5 = -10+b
-5+10 = -10+b+10 ... adding 10 to both sides
5 = b
b = 5 is the y intercept
So we have y = mx+b update to y = -5x+5 as the perpendicular line.
