20 because 19 16/33 is the exact answer. Since they ask about how much that can be rounded up to 20
<em>If the radius of a sphere is doubled, the surface area becomes four times the original surface area.</em>
Reflecting over the y-axis
F(x) = x^2 - 3x - 7
f(-3) = (-3)^ 2 - 3(-3) - 7
f(-3) = 9 + 9 - 7
f(-3) = 18 - 7
f(-3) = 11
Answer:
4/7
Step-by-step explanation:
Tan= Opposite/Adjacent
Tan<f = 4/7