Solve the problem.A person's metabolic rate tends to go up after eating a meal and then, after some time has passed, it returns to a resting metabolic rate. This phenomenon is known as the thermic effect of food, and the effect (in kJ/hr) for one individual is F(t) = -10.28 + 175.9te-t/1.3where t is the number of hours that have elapsed since eating a meal. Find the total thermic energy of a meal for the next four hours after a meal by integrating the thermic effect function between 
and 
A. 150.1 kJ
B. 186.5 kJ
C. 200.3 kJ
D. 128.4 kJ
Answer: C
Mathematics
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Solve the equation.
= 7
A. 49
B. 
C. 7
D. 
Mathematics
Solve.A vendor has learned that, by pricing hot dogs at $1.25, sales will reach 91 hot dogs per day. Raising the price to
will cause the sales to fall to 61 hot dogs per day. Let y be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that relates the number of hot dogs sold per day to the price x.
A. y = - 
x + 
B. y = 40x + 41
C. y = -40x - 141
D. y = -40x + 141
Mathematics
Factor the polynomial.50m2 + 60mn + 18n2
A. 2(5m + 3n)(5m - 3n) B. 2(5m - 3n)2 C. prime D. 2(5m + 3n)2
Mathematics
Answer the question or solve the problem.If a ? b, is it always true that a2 ? b2? Explain.
What will be an ideal response?
Mathematics