Sketch the graph of the equation. If the graph is a parabola, find its vertex. If the graph is a circle, find its center and radius.y = -2x2 + 20x - 46
A. vertex (4, 5)
B. vertex (-5, -4)
C. vertex (5, 4)
D. vertex (-5, 4)
Answer: C
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Find all the second order partial derivatives of the given function.f(x, y) = xy2 + yex2 + 5
A. 
= yex2(1 + 2x2); 
= x; 
= 
= y + xex2
B. 
= 2yex2(1 + 2x2); 
= 2x; 
= 
= 2y + 2xex2
C. 
= 2yex2; 
= 2x; 
= 
= 2y + 2xex2
D. 
= 2yex2; 
= 2x; 
= 
= 2xex2
Solve.
= 4
A. 2 B. 5 C. -2 D. No solution
Answer the question or solve the problem.Under what conditions must the inequality symbol be reversed when solving an inequality?
What will be an ideal response?
Find the linear equation that meets the stated criteria.The linear equation y = 72.38x + 1034 provides an approximation of the value (in dollars) of an account opened on January 1, 1993, in the amount of $1034 and earning 7% simple interest, where x = 0 represents January 1, 1993, x = 1 represents January 1, 1994, x = 2 represents January 1, 1995, and so on. Write an equation that yields the same y-values when the exact year number is entered.
A. y = 72.38(1994 - x) + 1034 B. y = 72.38(x - 1994) + 1034 C. y = 72.38(1993 - x) + 1034 D. y = 72.38(x - 1993) + 1034