Surface area of a cone = π{rs+r²}<br /> =πr{s+r}<br />part 1:if π is 6 units and s is 4 units then r would be 3.14 ×6 {4+6}<br /><br />part 2: area of a cone = 3.14 ×6×10<br /> =31.4×6<br /> = 188.4 units²<br />the surface area = 188.4 <br />units²<br /> hope i helped
Step-by-step explanation:
Let 
where
so that
Recall that the derivative of the product of functions is
so taking the derivatives of the individual functions, we get
So the derivative of y(x) is given by
or
Answer:
D
Step-by-step explanation:
72/9=8
-72/-9=8 because negative/negative=positive.
Answer:
2i + 7
Step-by-step explanation:
Given
(5 - 2i) + (2 + 4i) ← remove parenthesis
= 5 - 2i + 2 + 4i ← collect like terms
= 2i + 7
facotr -9
add factors
-1+9=8
correct
