Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
1/2
A. xy1/2
B. 
C. xy
D. xy2
Answer: D
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Solve the problem.After one round in a card game, your score was -45 points. After the second round, your score was 33 points. How many points did you gain in the second game?
A. -12 points B. 12 points C. 33 points D. 78 points
Solve the equation. Use the change of base formula to approximate an exact answer to the nearest hundredth when appropriate.ex = 156
A. x = log3156 B. x = 156e C. x = ln 156 D. x = log 156
Solve.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 48 square centimeters. Find the side of the square.
A. 6 cm B. 2 cm C. 4 cm D. 16 cm
Underline the digit that occupies the given place.12.44
Tenths place
A. 
2.44
B. 12.4
C. 1
.44
D. 12.
4