Use the properties of logarithms to evaluate the expression.log 10-12
A. log -12
B. -12
C. 12
D. 12 log 10
Answer: B
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Solve the problem.Suppose you just received a job offer with a starting salary of 
per year and a guaranteed raise of 
per year. How many years will it be before you've made a total (or aggregate) salary of 
?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Jill is 14 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1.5 kilometers per hour. They meet in 4 hours. How fast is Joe walking?
A. 1.5 kilometers per hour B. 3 kilometers per hour C. 4 kilometers per hour D. 2 kilometers per hour
Solve the problem.The arch beneath a bridge is semi-elliptical, a one-way roadway passes under the arch. The width of the roadway is 38 feet and the height of the arch over the center of the roadway is 14 feet. Two trucks plan to use this road. They are both 10 feet wide. Truck 1 has an overall height of 
and Truck 2 has an overall height of 
. Draw a rough sketch of the situation and determine which of the trucks can pass under the bridge.
A. Truck 1 can pass under the bridge, but Truck 2 cannot. B. Both Truck 1 and Truck 2 can pass under the bridge. C. Truck 2 can pass under the bridge, but Truck 1 cannot. D. Neither Truck 1 nor Truck 2 can pass under the bridge.
Solve the system. 3x - y = 12 2y + z = 15x + 4z = 41
A. (-5, -3, -9) B. (z + 12, -z + 15, z) C. (5, 3, 9) D. No solution