Use the summation properties and rules to evaluate the series. The following rules may be needed: 
.
A. 215
B. 68
C. 60
D. 223
Answer: C
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Write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible.A number multiplied by -3, subtracted from the sum of 19 and five times the number
A. 3x - (19 + 5x); -2x - 19 B. (19 + 5x) + (-3)x; 19 + 2x C. 3x - 24 D. (19 + 5x) - (-3)x; 19 + 8x
Solve the problem.A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, C(t), in milligrams after t hours is modeled by C(t) = 
.What is the horizontal asymptote for this function? Describe what this means in practical terms.
A. y = 2.00; 2.00 is the final amount, in milligrams, of the drug that will be left in the patient's bloodstream. B. y = 2.00; After 2.00 hours, the concentration of the drug is at its greatest. C. y = 0; 0 is the final amount, in milligrams, of the drug that will be left in the patient's bloodstream. D. y = 0.86; After 0.86 hours, the concentration of the drug is at its greatest.
Divide.
A. 43 B. 44 R 5 C. 44 R 6 D. 43 R 8
Graph the inequality.y + 5 < x
A. 
B. 
C. 
D. 