44.7-2.10= 42.6
42.6/3= 14.20
Each CD costs $14.20
The height is 14 cm.
A=bh/2
42=6h/2
42(2/6)=h
(42÷6)x2=h
7x2=h
h=14
The third answer would be correct. TUWV ~ DEFG; 6:4.5
This is because 6 is dilated to 4.5.
Hope this helped!
Hi there!

Our interval is from 0 to 3, with 6 intervals. Thus:
3 ÷ 6 = 0.5, which is our width for each rectangle.
Since n = 6 and we are doing a right-riemann sum, the points we will be plugging in are:
0.5, 1, 1.5, 2, 2.5, 3
Evaluate:
(0.5 · f(0.5)) + (0.5 · f(1)) + (0.5 · f(1.5)) + (0.5 · f(2)) + (0.5 · f(2.5)) + (0.5 · f(3)) =
Simplify:
0.5( -2.75 + (-3) + (-.75) + 4 + 11.25 + 21) = 14.875