Solve for r s=2 πrh a. s/2= r b. 2 πsh=r c. s/2 π= r d. s/2 πh= r
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Answer is Choice C
I used the power rule for integrals.
I used the power rule for integrals.
We see on the picture that :
When we go down one row, we add one horizontal and two diagonal cards.
In the first row we have 2 cards
In the second 2+3=5 cards
In the third 5+3=8 cards
etc.
General formula : in the n-th row from the top, we have
When we go down one row, we add one horizontal and two diagonal cards.
In the first row we have 2 cards
In the second 2+3=5 cards
In the third 5+3=8 cards
etc.
General formula : in the n-th row from the top, we have