HELP QUICK PLEASE
You work for a company that makes unusual windows. You have designed this window, and your boss would like you to write a formula so he can calculate the area of glass needed. Which formula is correct?

E

Step-by-step explanation:

Area = semicircle + rectangle

= [½ × pi × r²] + [h × (r + r)]

= ½pi×r² + 2rh

15.5

step-by-step explanation:

5

∑

n = 1

substitute n = 1, 2, 3, 4, 5 and sum the terms

= + + + 2² + 2³

= 0.5 + 1 + 2 + 4 + 8

= 15.5

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.