Answer:
Step-by-step explanation:
ˣ²-2ˣ-1
=(x-1)² > this is a difference of squares a^2 - 2ab + b^2 = (a-b)^2
x^2 = x
b^2 = b
Answer:
Range is (-9, -5, -1, 3).
Step-by-step explanation:
Work out f(x) for each value of x:
f(-3) = 2(-3) - 3 = -9
f(-1) = 2(-1) - 3 = -5
f(1) = 2(1) - 3 = -1
f(3) = 2(3) - 3 = 3
Answer:
see below
Step-by-step explanation: 6 5 17 43
Volume of a sphere = 121.5 π mm³ Find r
Vol Sphere = (4π r³) / 3 solve for r
Vol Sphere × 3 = (4π r³)
(Vol Sphere × 3) / 4π = r³
∛((Vol Sphere × 3) / 4π) = r
∛((121.5 π mm³× 3) / 4π) = r the pi terms cancel
∛((121.5 mm³× 3) / 4) = r
∛((364.5 mm³) / 4) = r
∛((91.125 mm³) ) = r
4.5 = r
1.
2. For the surface area cm² is appropriate because you're finding the area of the surface (in 2nd dimension).