Answer: b) 384 sq. in.
Step-by-step explanation:
Surface area of cube = 6a^2
= 6 (8)^2
= 6 x 64
= 384 sq. in.
Answer:
Step-by-step explanation:
a-5 = -5+a
m-n = m + (-n)
7+3 = 7 - ( -3)
a+5 = a - (- 5)
a+b = a - (-b)
A^2+b^2=c^2
a^2+9^2=15^2
a^2+81=225
-81 -81
a^2= 144 (square root both sides)
a=12
The derivate is. f'(x)=2x+1 .then f'(-1)=-2+1=-1
Answer:
last option.
Step-by-step explanation:
See attached.
I'm not sure why you crossed out the last option, but it seems to be correct.