Answer: 78
Step-by-step explanation:
6(4+9)
use foil to distribute the 6 to the 4 and 9
6×4 + 6×9
24 + 54
⇒ 78
Answer:
50. in this graph it is talking about the rate it changed from 1 to 4
Step-by-step explanation:
f(b)-f(a)/b-a
270-120/4-1
50
Answer:
800
Step-by-step explanation:
7. the formula for octagon is a=2(1+radical2)s^2
s=4
a=about 77.25
8.