Write the expression as the sum or difference of logarithms.logb 
A. logb m7 + logb p4 + logb n9
B. m7p4 - n9
C. 7logb m + 4logb p + 9logb n
D. 7logb m + 4logb p - 9logb n
Answer: D
Mathematics
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Solve the problem.Lu Yi walks his dog Sam with a leash of length 3 feet. Sam always walks directly to Lu Yi's right at the end of his leash. If Lu Yi walks once around a rectangle of length L and width W, how much further does Sam walk than Lu Yi? Give an exact answer.
A. 6? ft B. (6? + 2L + 2W) ft C. (3? + L + W) ft D. 3? ft
Mathematics
Find the center of the hyperbola.
- 
= 1
A. (0, 0) B. (6, 4) C. (0, 6) D. (4, 0)
Mathematics
Choose the graph of the equation.z = x2- y2
A. 
B. 
C. 
D. 
Mathematics
Describe the curve defined by the given parametric equations.x = 6 sin t, y = 4 cos t; for t in [0, 2?]
A. Hyperbola B. Ellipse C. Circle D. Line segment
Mathematics