Answer:
C
Step-by-step explanation:
This makes the most sense.
The first answer is the correct one
Step-by-step explanation:
the set builder form for [6,7,8,9, ....] is given as:
Answer: C
since the line isn't straight, the slope/function is decreasing but not at a constant rate
168cm2
Let r cm be the radius of the balloon, then
<span>2pi(r)=23=>r=23/(2pi) </span>
<span>The surface area= </span>
<span>4pi(r^2)= </span>
<span>4pi[23/2pi)]^2= </span>
<span>(23^2)/pi=168.386 cm^2 </span>
<span>approximately.</span>
