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N76 [4]
3 years ago
5

If 500 mg of a certain medication is given to a patient, and the amount of the medication in the patient’s system is cut in half

every hour, then amount A of medication in the patient’s system can be found using the formula A(t)=500(1/2)^t.
About how long will it take to have less than 40 mg of the medication left in the patient’s body?



A. 3.7 hr
B. 1.4 hr
C. 6.1 hr
D 0.3 hour
Mathematics
1 answer:
SOVA2 [1]3 years ago
6 0

Answer:

a

Step-by-step explanation:

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Mandy is building a rectangular garden pond with the area of 12ft^2. The length of pool needs to be 2 ft more than twice the wid
Genrish500 [490]

The length of rectangular pool is 6 ft and width of rectangular pool is 2 ft.

Step-by-step explanation:

Given,

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12=(2w+2)*w\\12=2w^2+2w\\2w^2+2w-12=0

Dividing each term by 2;

\frac{2w^2}{2}+\frac{2w}{2}-\frac{12}{2}=0\\w^2+w-6=0\\w^2+3w-2w-6=0\\w(w+3)-2(w+3)=0\\(w+3)(w-2)=0\\

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The length of rectangular pool is 6 ft and width of rectangular pool is 2 ft.

Keywords: rectangle, area

Learn more about areas at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

7 0
3 years ago
what is the altitude corresponding to the side of length 8.5 CM in a parallelogram whose area is 34 CM square
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The altitude of the corresponding side is 4 cm
4 0
3 years ago
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