Determine whether a linear model, a quadratic model, or neither type of model would be reasonable for modeling the data depicted by the scattergram.
A. Linear
B. Quadratic
C. Neither
Answer: C
Mathematics
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Find the area of the figure. Use 3.14 for ?. Round approximations to the nearest tenth.
a = 12 yd, b = 8 yd, c = 18 yd
A. 170.2 yd2 B. 169.1 yd2 C. 145.1 yd2 D. Not enough data
Mathematics
Perform the indicated operations and express your answer in the form a + bi. 
A. -10i B. 10 C. 10i D. -10
Mathematics
For the given functions f(x) and g(x), find a value x for which (f?g)(x) = (g?f)(x).f(x) = x + 9, g(x) = x2 - 81
A. x = - 4
B. x = 
C. x = - 5
D. x = 5
Mathematics
Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.tan 80° - 
A. 1 B. 0 C. 80 D. undefined
Mathematics