Use an inverse matrix to find the solution to the system.
A. x = 4, y = 1, z = 2
B. x = -4, y = 1, z = 8
C. x = 4, y = 2, z = 1
D. x = -4, y = 8, z = 1
Answer: A
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cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Given functions f and g, perform the indicated operations.f(x) = 
,g(x) = 
Find fg.
A. (4x + 2)(9x - 25)
B. (
)(
)
C. (3x - 5)(
)
D. (4x + 2)(3x - 5)
Solve the problem.A cab company charges a base rate of $1.00 plus 10 cents per minute. Let y be the cost in dollars of using the cab for x minutes. Find the slope-intercept form of the equation.
A. y = 1.00x - 0.10 B. y = 1.00x + 0.10 C. y = 0.10x - 1.00 D. y = 0.10x + 1.00
Solve the special system by substitution. If the system is dependent, write the solution using set-builder notation with the common line expressed in slope-intercept form.
A. ?
B. 
C. (0, 0)
D. 