Answer:
x^2+10x+16
Step-by-step explanation:
Plug in the values
h=x+8
b=2x+4
A=1/2(2x+4)(x+8)
A=(x+2)(x+8)
FOIL: x^2+8x+2x+16
A=x^2+10x+16
The answer is 21, 21 is the value of x
Answer:
E. (7,-2)
Step-by-step explanation:
If (55 + x)/2 is to be 67, then 55+x = 2*67, so x = 2*67 - 55 = 79
