Break it upas shown..... 3 .rectangles area = l x w
triangle area = 1/2 b * h = 1/2 (7)(2)
( pi r^2 of large basin - pi r^2 of smaller basin ) * 3 ft = ........... pi ft3
NOTE : r = 1/2 of the diameter
One base rectangle 6 x 5 = 30 cm2
PLUS
triangle area = 1/2 base * height = 1/2 *5 * 4 cm2
Complementary means they sum to 90 degrees
8x+5 + 3x+8 = 90
11x + 13 = 90
11x = 77
x = 7 degrees
5 out of 8 squares are shaded 5/8 = .625 which means 62.5 % is shaded
From a previous post:
https://web2.0calc.com/questions/i-am-following-ep-s-suggestion#r1
they add to 180 ( supplenetary)
2x+3 + x-6 = 180
3x = 183
x = 61 now you can compute the angles
Odd wording but 120% of 40 = 1.2 (40) = 48
Find the slope between the two marked points
(1- -5 ) / (5-0) = 6/5
then use one of the points for point slope form
(y-1) = 6/5 (x -5) which you can re-arrange to slope intercept form
y = 6/5 x -5
68-22 = 70 - x
46 = 70 -x subtract 70 from both sides of the equation
-24 = -x
x = 24
