Solve the problem.The formula D = 7e-0.04h can be used to find the number of milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. When the number of milligrams reaches 3, the drug is to be given again. What is the time between injections?
A. 27.47 hr
B. 23 hr
C. 48.65 hr
D. 21.18 hr
Answer: D
Mathematics
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Solve. Use the principle of square roots.(x - 7)2 = 25
A. 2, -12 B. 5, -5 C. 32 D. 12, 2
Mathematics
Find the distance between the points. Round your answer to the nearest tenth except when an exact answer is requested.(-3.369, -6.016) and (4.327, 1.206)
A. 14.9 B. 111.4 C. 2.7 D. 10.6
Mathematics
Determine whether the graph representing the equation is symmetric with respect to the x-axis, the y-axis, the origin or none.y = |19x|
A. x-axis, y-axis, origin B. y-axis only C. x-axis only D. origin only
Mathematics
Convert as indicated.7 ml to deciliters
A. 0.7 dl B. 700 dl C. 70 dl D. 0.07 dl
Mathematics