Solve.Brenda burns 300 calories per hour playing soccer. How many calories are needed to play soccer for 80 minutes a day for 5 days?
A. 120,000 cal
B. 2000 cal
C. 4800 cal
D. 1500 cal
Answer: B
Mathematics
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Solve the problem.Does the graph of the function y = 2x + 4 sin x have any horizontal tangents in the interval 
If so, where?
A. Yes, at x = 
, x = 
B. No
C. Yes, at x = 
D. Yes, at x = 
, x = 
Mathematics
A function of x is depicted in the graph. Find any input values that produce the indicated output.f(x) = -2
A. x = -4 and x = 0 B. x = 4 and x = 0 C. x = -8 and x = 4 D. x = -4
Mathematics
Solve the equation. Use words or set notation to identify equations that have no solution, or equations that are true for all real numbers. 6(x + 6) = 6x - 72
A. {0} B. {72} C. ? D. {x|x is a real number}
Mathematics
Find tan t given that  figure 1.png)
and cot t<0.
 figure 2.png)
Mathematics