Given A = {60} and B = {40, 50, 60, 70, 80}, which of the following statements is true?
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Mathematics
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Perform the indicated operation or operations.(-6)(-4) ÷ (7 - 11)
A. -96 B. -4 C. 6 D. -6
Mathematics
Evaluate the integral.
dz
A. csc 
+ C
B. -cot 
+ C
C. - 
csc 
+ C
D. -csc 
+ C
Mathematics
Find the difference. Write the difference in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Convert the polar equation to a rectangular equation.r = -9 cos ?
A. 
2 + y2 = 81
B. x2 + y2 = 9
C. 
2 + y2 = 
D. x = -9
Mathematics