Find the domain of the rational expression. 
A. {x|x is a real number and x ? 5 and x ? -7}
B. {x|x is a real number and x ? 5 and x ? -5 and x ? -7}
C. {x|x is a real number and x ? 5 and x ? -5 and x ? 7}
D. {x|x is a real number and x ? 5 and x ? 7}
Answer: C
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Determine the natural logarithm of the number. Round to the nearest ten-thousandth.(0.0076494)3
A. -6.3491 B. -14.6194 C. 3.0000 D. -3.7745
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.
2
A. x + 14
+ 100
B. x + 14
+ 46
C. x + 14
+ 49
D. x + 14
+ 52
Provide an appropriate response.When solving a system of equations, you get x + 5 = x + 5. How many solutions are there?
A. One solution B. No solutions C. Infinitely many
Solve the problem.A comet has a nearly circular orbit around a star with a radius of 330 million miles and requires 8.24 earth years to complete one orbit. Estimate the orbital speed of the comet in miles per hour. Round to the nearest mile per hour.
A. 689,404 mph B. 252 mph C. 28,725 mph D. 251,632,423 mph