If , then , , and .
We can break up the given sum into 25 groups (after adding and subtracting ):
We have
and in each group, we can pull this out as a factor. For example,
So the entire sum reduces to the remaining term,
Answer:120 apples
Step-by-step explanation:
72/.60=120
the answer to this question is 7w
<span>Similar means their sides have the same ratio but don't have to be the same length. So if two rectangles are similar with a scale factor of 2 then the ratio of their areas would be 4:1.
Hope this helped :)</span>
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Answer:
4.09 seconds
Step-by-step explanation:
The ball is in the air until h(t) = 0. Solving that equation for t, we have ...
0 = -16t^2 +64t +6
t^2 -4t = 3/8 . . . . . . rearrange, divide by 16
t^2 -4t +4 = 4 3/8 . . . add 4 to complete the square
(t -2)^2 = 4.375 . . . . write as a square
t = 2 +√4.375 . . . . . positive square root, add 2
t ≈ 4.09165
The ball was in the air about 4.09 seconds.