Answer:
14
f(x) = 7
-7^2 + 9(7)= -49 + 63 = 14
Answer:
48
Step-by-step explanation:
5 x^2 +x
Let x = 3
5 * 3^2 +3
Exponents first
5 * 9+3
Multiply next
45+3
48
Answer:
(2x + 5) ( x + 5)
Step-by-step explanation:
2x² + 15 + 25
2x² + 10x + 5x + 25
2x( x + 5) + 5( x + 5)
(2x + 5) (x + 5)
Answer: (A) 352 π units^2
Explanation in image.
Knowledge point:
Geometry - cylinder area formula
Associative property of <span>multiplication</span>