The graph of a function f is given. Use the graph to answer the question.Find the values of x, if any, at which f has a relative minimum. What are the relative minima?
A. f has a relative minimum at x = 0; the relative minimum is 2
B. f has no relative minimum
C. f has a relative minimum at x = -1 and 1; the relative minimum is 0
D. f has a relative minimum at x = -1; the relative minimum is 0
Answer: C
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Simplify.21 ÷ 
- 6 ÷ 
A. 5
B. 1
C. 
D. 
Solve the problem.Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 23 coins with a total face value of $3.75 how many of the coins are nickels?
A. 18 nickels B. 12 nickels C. 10 nickels D. 13 nickels
Solve the equation. Give an exact solution.log5 x = -3
A. -15
B. 
C. 2
D. 
Solve the problem.The sun is surrounded by an extremely hot plasma called the "corona". The average kinetic energy E of a subatomic particle in the corona can be approximated by the model 
where E is in joules, T is the Kelvin temperature of the corona, and k is Boltzmann's constant, 
At a certain distance above the sun's north pole, a measurement indicates that the average kinetic energy of coronal particles is 0.00 J. Estimate the temperature in this region.
A. 3.0 × 105 K B. 0.00 K C. 3.0 × 106 K D. 2.00 × 106 K