X would equal 81 because the square root of 81 is 9.
9 x 9 = 81
Answer:
-5c³d-⁴
Step-by-step explanation:
15÷3=5
for c and d we subtract powers that
Answer: 706.5
Step-by-step explanation:
First you have to square the radius. So for this question you multiply 5x5. That makes 25. Then you multiply that with pi ( 3.14 ) and that makes 78.50. Next you multiply it by 9, that makes 706.5.