Solve the system by graphing. 2x + y = -3 4x + 4y = 4

A. (1, -5)
B. (4, 5)
C. (-4, -5)
D. (-4, 5)


Answer: D

Mathematics

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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the . y = x2, y = 0, x = 0, x = 3

A. 9?
B. ?
C. ?
D. ?

Mathematics

Solve the problem.A surveyor measured the length of a piece of land at 100-ft intervals (x), as shown in the table. Use Simpson's Rule to estimate the area of the piece of land in square feet.

A. 23,000 ft2 B. 22,000 ft2 C. 27,000 ft2 D. 22,500 ft2

Mathematics

Find the coordinates of the vertex of the quadratic function.f(x) = (x + 3)2 - 4

A. (-3, 4) B. (3, -4) C. (-3, -4) D. (3, 4)

Mathematics

Simplify the expression. Assume that all variables represent nonnegative real numbers. +  + 

A. 16 + 17x
B. 160 + 17x
C. xy +  + 17x
D. 16 +  +  

Mathematics