Solve the problem.On a map of Nature's Wonder Hiking Trails, 1 centimeter corresponds to 4 miles. Find the length of a trail represented by a line that is 9
centimeters long on the map.
A. 2
mi
B. 38 mi
C. 
mi
D. 313
mi
Answer: B
Mathematics
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Perform the indicated operation.-52
A. -25 B. 125 C. 25 D. -125
Mathematics
Rationalize the denominator. Assume variables represent non-negative values. 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Mardi received an inheritance of $50,000. She invested part at 11% and deposited the remainder in tax-free bonds at 10%. Her total annual income from the investments was $5300. Find the amount invested at 11%.
A. $44,700 B. $30,000 C. $29,000 D. $15,000
Mathematics
Find the inverse of the matrix A, if it exists.A = 
A. A-1 does not exist.
B. A-1 = 
C. A-1 = 
D. A-1 = 
Mathematics