Surface area = 4pir^2. So, the expression would be 4*3.14*2. So, the surface area is 50.265 in^2.
1. Check all polynomials that are perfect square trinomials:9x2 − 6x + 1
16x2 + 24x + 9
2. Factor completely: x2 − 8x + 16
(x − 4)(x − 4)
3. Factor completely: 16x2 + 40x + 25
(4x + 5)(4x + 5)
4. Rhett decides to build a square room for his movie and music collection. If the area of the room is 9x^2 − 6x + 1 square feet, what is the length of one side of the room?
(3x − 1) feet
5. Given the following perfect square trinomial, fill in the missing term. (Do not type the variable in the blank.)
4x2 + ___x + 49
Answer: 28
The first step in solving for f(g(x)) when x=3, is solve for g(x). The answer of g(x) when x is equal to 3 is -(5) multiplied by 3 add by 2. Therefore, g(x) is -13. Then substitute the value of g(x) to f(x). The answer of f(-13) is 2 multiplied by -13, then add 1. So, the final answer is, f(x)=-25.