Multiply.(-3)(-7)
A. -28
B. -21
C. 28
D. 21
Answer: D
Mathematics
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Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x - y + 5z = -14x + z = 0 x + 4y + z = 4
A. {(0, 1, 0)} B. {(0, 0, 1)} C. {(0, 1, -1)} D. ?
Mathematics
Match the correct function to the graph.
A. y = x - 2 B. y = |x + 2| C. y = |1 - x| D. y = |2 - x|
Mathematics
Find the x- and y-intercepts:
A) (9,0), (0, 0); (0,81)
B) (–9,0); (0,–81)
C) (–9, 0); (0, 81)
D) (–9,0), (9,0); (0,81)
E) (9,0); (0,81)
Mathematics
A rectangular tank is 
ft. by 
ft. by 
class="wirisformula" /> ft. Gasoline weighs approximately 
3. Find the weight of the gasoline if the tank is full.__________ lbs
Fill in the blank(s) with the appropriate word(s).
Mathematics