Answer:B,C,A,C.
Step-by-step explanation:
1/2 which can be simplified in many forms such as 4/8 or 3/6 or 6/12
(-2a^5b^4) * (42ab^6) = -84a^6b^10
The lateral surface area is the area of the side thing, not the 2 circles.
If we imagine to stretch the side out, we can get a rectangle with base the circumference to the base circle, and height of 9 inches.
Therefore this area is pi*8*9=72π
Two complementary angles make a total of 90, so 3x+6x=90, x=10
