Add or subtract. Assume all variables represent positive real numbers.4
+ 7
A. 28
B. 4
+ 7
C. 11
D. 11
Answer: B
Mathematics
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Solve the problem.Find the area of the region bounded by y = tanh x, y = 0, x = ln 2 and x = ln 10.
A. 
B. ln 
C. ln 2
D. ln 
Mathematics
Answer yes or no.Let n = 23 ? 51 ? 133. Is 22 ? 133 = 8788 a factor of n?
A. Yes B. No
Mathematics
Find the equation of the circle. Express the equation in standard form
A. (x + 10)2 + (y - 25)2 = 152 B. (x - 25)2 + (y + 10)2 = 152 C. (x + 10)2 + (y + 25)2 = 152 D. (x - 25)2 + (y - 10)2 = 152
Mathematics
Combine like terms and write the resulting polynomial in descending order of powers.8a9 - 2a9 + 4a5 + 15a9 - 11a5
A. 14a9 B. 21a9 - 7a5 C. 14a14 D. Cannot be simplified
Mathematics