We know the perimeter is the total sum of all sides of the shape, we can use this to form an equation: the perimeter=1st side + 2nd side + 3rd side + 4th side 39a-7=9a+(5a+1)+(17a-6)+4th side.
Collect like terms to get 39a-7=31a-5+4th side
If we move everything but the 4th side over to the left we can solve
C. 8a-2=4th side is the correct answer
Cercumference = 2<span>πr
Then just multiply </span><span>π by denominator
radius will always be half of denominator
Answer 138.23
Hope that helps </span><span />
LCM of 5(y - 4)(y + 4) and (y + 4) is 5(y - 4)(y + 4)
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Answer: 5(y - 4)(y + 4) (Answer D)-----------------------------------------------------------------------
Answer: 29
Step-by-step explanation: u have to group up all the apples into 4 equal groups and find out how many apples are in each group