The area of a trapezoid is
A = (1/2) (h) (b1 + b2).
( 'h' is the height of the trapezoid. 'b1' and 'b2' are its two bases.)
You want the equation solved for one base.
A = (1/2) (h) (b1 + b2).
Multiply each side by 2 : 2A = h(b1 + b2)
Divide each side by 'h' : 2A/h = b1 + b2
Subtract b1 from each side: <em>2A/h - b1 = b2</em>
There are 90 teenage girls in the concert hall.
2/5 x 600 = 240
3/8 x 240 = 90
Answer:
5: given y=2x-2 new y=2x+2
6: given y=-1/4x+4 new y=-1/4x+7
Step-by-step explanation:
Answer:
35, 55, and 90 degrees
Step-by-step explanation:
The acute angles of a right triangle are complementary, so if the smallest angle measures x, the next largest angle measures (x+20) degrees. So, x+(x+20)=90, meaning x=35.
So, the angles measure 35, 55, and 90 degrees.
