Mathematics, 11.02.2020 00:35 dean111375

When doctors prescribe medicine, they must consider how the drug’s effectiveness declines as time passes. If each hour a drug is only 90% as effective as the previous hour, at some point the patient will have to be given another dose in order for the drug to remain effective. If the initial dose was 500 mg and the drug was administered 6 hours ago, how long will it take for the initial dose to reach a level of 150 mg?

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:30, itzygutierrez7373

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Answers: 2

continue

Mathematics, 21.06.2019 19:00, jimena15

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

Answers: 2

continue

Mathematics, 21.06.2019 19:10, dooderh

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Answers: 1

continue

Mathematics, 21.06.2019 22:00, dest8860

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Answers: 1

continue

You know the right answer?

When doctors prescribe medicine, they must consider how the drug’s effectiveness declines as time pa...