Answer:
I got B) 72 cm^3
Step-by-step explanation:
cube area= 4
rectangle area= 18
4*18= 72
320 because you added the two numbers to get the total.
Answer:
d) x=4
Step-by-step explanation:
divide 10 in both sides
x=4
If this is supposed to be
Then this can simply be reduced to
by the double angle formula for cosine