Write the augmented matrix for the system. 9x - 2y = -6 9y + 2z = 8 -3z = -4
A. 
B. 
C. 
D. 
Answer: D
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Write a quadratic equation having the given numbers as solutions.9, only solution
A. x2 + 9x + 81 = 0 B. x2 - 81 = 0 C. x2 - 18x + 81 = 0 D. x2 + 18x + 81 = 0
Solve the problem.Let g(x) = 
. Find a function y = f(x) so that (f ? g)(x) = 
.
A. f(x) = 
B. f(x) = 
C. f(x) = x2
D. f(x) = x
Integrate the function.
, x > 3
A. ln 
+ C
B. ln 
+ C
C. 
+ C
D. 
+ C
Solve the problem.A crosswalk diagonally crosses a street whose curbs are 48 feet apart. The width of the crosswalk is 15 feet. The crosswalk intersects the south side of the street with a 20 foot displacement in the direction of the street. (In other words, the point where one edge of the sidewalk intersects the south side of the street lies 20 feet east of the point where that edge of the crosswalk intersects the north side of the street.) What is the area of the crosswalk?
A. 720 ft2 B. 780 ft2 C. 750 ft2 D. 845 ft2