Simplify by combining like terms.7x - 3 - 2x + 8
A. 5x - 5
B. 5x + 5
C. 10x
D. 9x + 5
Answer: B
Mathematics
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Which of the following is the graph of 
on a horizontal span of 0 to 4.5?
A. 
B. 
C. 
D. 
Mathematics
Evaluate the integral.
dz
A. csc 
+ C
B. - 
csc 
+ C
C. -cot 
+ C
D. -csc 
+ C
Mathematics
Find the focus and directrix of the parabola with the given equation.x2 = -28y
A. Focus: (0, -7), directrix: y = 7 B. Focus: (-7, 0), directrix: x = 7 C. Focus: (0, 7), directrix: y = -7 D. Focus: (7, 0), directrix: x = -7
Mathematics
Find all values x = a where the function is discontinuous.k(x) = e
A. a < -2 B. Nowhere C. a > 2 D. a > -2
Mathematics