State whether the parabola opens upward or downward.f(x) = x2 + 20
A. Upward
B. Downward
Answer: A
Mathematics
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Find the area enclosed by the given curves.y = 
x2, y = -x2 + 6
A. 4 B. 32 C. 8 D. 16
Mathematics
Solve.Seven times some number, added to 7, amounts to -5 added to the product of 4 and the number. Find the number.
A. -4 B. 4 C. 12 D. -12
Mathematics
For the following triangle, calculate the indicated trigonometric ratio of the given angle. Do not use the trigonometric function keys on your calculator. (Round to the nearest hundredth.)
A. 0.78 B. 0.63 C. 1.24 D. 0.27
Mathematics
Use ordinary division of polynomials to find the quotient and remainder when the first polynomial is divided by the second.2x3 - 3x2 - 5x + 4, x - 2
A. 2x2 + x + 3; 10 B. 2x2 + x - 3; -2 C. 2x2 - 7x + 11; 18 D. 2x2 + 7x + 9; 22
Mathematics