Simplify:
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Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary.6x + 2y - z = -24x - y + 2z = 1-12x - 4y + 2z = 0
A.
B. ?
C.
D. {(0, 0)}
Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. t = 3.65 minutes after the injection is given B. at the time of injection C. t = 4 minutes after the injection is given D. t = 0.55 minutes after the injection is given
Solve the problem.A window washer accidentally drops a bucket from the top of a 144-foot building. The height h of the bucket after t seconds is given by When will the bucket hit the ground?
A. -3 sec B. 3 sec C. 48 sec D. 9 sec
Graph the function.f(x) = -1 - ln x
A.
B.
C.
D.