Simplify the expression. Assume all variables represent positive real numbers.
+ 
- 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Graph the system of inequalities, and find the coordinates of the vertices.3x - 2y ? 6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.b = 20, c = 25
A. a = 5 B. a = 15 C. a = 225 D. a = 45
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature the highest?
A. 1 p.m. B. 2 p.m. C. 5 p.m. D. 11 a.m.
Mathematics
Simplify.i11
A. i B. -i C. -1 D. 1
Mathematics