Please show all the work For #9, fill in the missing information for the following trapezoids. SHOW YOUR WORK to solve for the missing value.
9.
height =
b1 = 20 cm
b2 = 21 cm
area = 205 cm2

We know that the area of trapezoid is = ( a+b/2 ) × h

Whereas, a is base ( b1 ) and b is another base ( b2 ) and h is height. Given area of trapezoid is = 205 cm²

So the answer of yours question is, Height of trapezoid = 10 cm.

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80