The question in incomplete..f(x) maybe a polynomial of any degree and will yield varying results for each ..but assuming it's a linear equation , we would have f(x) = x +2 , So , F(5) = 7.
Answer:
2
Step-by-step explanation:
Taylor: x
Jim: x + 18
Andre: 2x
Sum: x + (x + 18) + 2x = 26 ↔ x = 2
The answer to the problem is C
100 kilometers you solve with a proportion 2/20=10/x
2x=200 so x=100
Looks good to me. Calculation is correct. Although you might want to add to #1 your description; that the width of the rectangle is the circumference of the circle (w = 2πr) and that you add the surfaces together to get the total surface area.
total surface area = area of rectangular part + area of circular parts
SA = 2πrL + 2πr²
