Solve the number problem by finding the value of the unknown number.The difference of a number and 3 is 39 less the number.
A. -18
B. 21
C. -21
D. 18
Answer: B
Mathematics
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Solve the problem.Find all points on the cardiod r = a(1 - cos ?) where the tangent line is vertical.
A. (2a, ?), 
, 
B. 
, 
, 
C. 
, 
D. (2a, ?), 
, 
Mathematics
Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 2?2 - 2? B. 2?2 + 4? C. 2?2 D. 2?2 - 4?
Mathematics
Solve the problem.A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 51 marbles in it. At least how many green marbles does it have?
A. At least 34 green marbles B. At least 26 green marbles C. At least 18 green marbles D. At least 17 green marbles
Mathematics
Evaluate the sum.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics