Divide.- 
÷ 
A. - 
B. - 
C. 
D. 
Answer: D
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Use the equation to identify the slope and the y-intercept of the graph.5x + 7y = 38
A. m = - 
; (0, 
)
B. m = -1
; (0, 
)
C. m = 
; (0, 
)
D. m = 1
; (0, 
)
Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3900. Therefore, the total cost to remodel the bathroom is given by 
where x is the number of hours the contractor works. Find a formula for 
What does 
compute?
A. f -1(x) = 
- 156; This computes the total cost if the contractor works x hours.
B. f -1(x) = 
- 3900; This computes the number of hours worked if the total cost is x dollars.
C. f -1(x) = 
- 156; This computes the number of hours worked if the total cost is x dollars.
D. f -1(x) = 
- 3900; This computes the total cost if the contractor works x hours.
Find the matrix [ A ] ( [ B ] + [ C ] ), if
?
,
,
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the problem.If a projectile is fired at an angle ? and initial velocity v, then the horizontal distance traveled by the projectile is given by 
Express D as a function of 2?.
A. D = 
v2 sin 2?
B. D = 
v2 cos 2?
C. D = 
v2 sin 2?
D. D = 
v2 sin 2?