Answer:
D. Incomplete randomization
Step-by-step explanation:
35 lol
a = b*h/2
a = 10*7/2
a = 70/2
a = 35 lol
Answer:D. X= -9 or x= 1
X2 + 8x - 9 = 0
11cm2
11cm2x10cm2/2 = 55cm2