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zysi [14]
3 years ago
5

A migraine sufferer took Two 400mg doses of naproxen. The half-life for

Mathematics
1 answer:
12345 [234]3 years ago
7 0

Answer:

If y(t) is the mass (in mg) remaining after t years, then y(t) = y(0) (0.5)^{t/T} = 400 (0.5)^{t /4}, where T is the half-life period and y(0) is the amount at t = 0 years (initial).

Then at t = 20:

y(20) = 400 (0.5)^{20 /4} = \text{12.5 mg}

Step-by-step explanation:

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Stolb23 [73]

Answer: Maybe it's the third one I'm not completely sure. don't take my word for it.

Step-by-step explanation:

6 0
2 years ago
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Zigmanuir [339]

Answer: The answer would be 40 liters

Step-by-step explanation:

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8 0
3 years ago
One number is 2 less than a second number. Twice the second number is 17 less than 5 times the first
gulaghasi [49]
X=y-2
2y=5x-17
Substituting for x into the second equation, we find
2y=5(y-2)-17
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4 0
3 years ago
Kate bought a T-shirt for $12.95 and a pair of shorts for $10.95. She paid 6.25% in tax. What is her total amount that she paid?
sergeinik [125]

Kate paid $25.39 for her purchases.

Kate will receive $24.61 in change.

Step-by-step explanation:

Given,

Cost of t-shirt = $12.95

Cost of pair of shorts = $10.95

Total = cost of t-shirt + cost of pair of shorts

Total = 12.95 + 10.95 = $23.90

Sales tax = 6.25% of total amount

Amount of sales tax = \frac{6.25}{100}*23.90=\frac{149.375}{100}

Amount of sales tax= $1.49

Total amount with sales tax = 23.90 + 1.49 = $25.39

Kate paid $25.39 for her purchases.

Amount paid = $50

Change received = Amount paid - Bill amount

Change received = 50 - 25.39 = $24.61

Kate will receive $24.61 in change.

Keywords: sales tax, addition

Learn more about addition at:

  • brainly.com/question/11584312
  • brainly.com/question/116059

#LearnwithBrainly

3 0
3 years ago
Pls solve for x &amp; explain your answer.<br> x^5 + 10x^3 + 20x - 4 = 0
yarga [219]

Answer:

0.2

Step-by-step explanation:

Graph each side of the equation. The solution is the x-value of the point of intersection.

7 0
1 year ago
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