Simplify. Assume that all variables represent positive real numbers.
A. 75x
B. 5
C. 3x2 
D. 5x
Answer: D
Mathematics
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Solve the following system of equations by graphing. Round your answers to two decimal places.
What will be an ideal response?
Mathematics
Solve the problem.The resistance R produced by wiring resistors of R1 and R2 ohms in parallel can be calculated from the formula 
If R1 and R2 are measured to be 4 ohms and 8 ohms respectively and if these measurements are accurate to within 0.05 ohms, estimate the maximum percentage error in computing R.
A. 1.25% B. 1.67% C. 2.08% D. 1.04%
Mathematics
Find the surface area of the solid.
A. 2920.2 in.2 B. 1860.5 in.2 C. 553.4 in.2 D. 1106.9 in.2
Mathematics
Determine whether the graph opens upward or downward.y = x2 - 5
A. Upward B. Downward
Mathematics