Use symbols to write the expression and then evaluate it.Three squared plus nine
A. 32 - 9; 18
B. 92 - 3; 78
C. 92 + 3; 84
D. 32 + 9; 18
Answer: D
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Solve the problem.The cost in millions of dollars for a company to manufacture x thousand automobiles is given by the function C(x) = 3x2 - 30x + 200. Find the number of automobiles that must be produced to minimize the cost.
A. 15 thousand automobiles B. 10 thousand automobiles C. 125 thousand automobiles D. 5 thousand automobiles
Let x represent one number and let y represent the other number. Use the given conditions to write a system of nonlinear equations. Solve the system and find the numbers.The sum of two numbers is -6 and their product is -7. Find the numbers.
A. -7 and 1; 7 and -1 B. 7 and -1 C. -7 and 1 D. -7 and -1; 7 and 1
Find the center of the ellipse.
+ 
= 1
A. (20, 0) B. (0, 12) C. (0, 0) D. (20, 12)
State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.f(x) = 4x + 7x3
A. Yes; degree 4 B. Yes; degree 7 C. Yes; degree 3 D. Yes; degree 1