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Vladimir79 [104]
3 years ago
7

Need help with math points and brainlest

Mathematics
1 answer:
Nitella [24]3 years ago
4 0

Answer:

Step-by-step explanation:

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$1,200
Explaination: 6/600=100x12=1,200
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3 years ago
If you start with 85 milligrams of Chromium 51, used to track red blood cells, which
zysi [14]

About 92 days are taken for 90 % of the material to <em>decay</em>.

The mass of radioisotopes (m), measured in milligrams, decreases exponentially in time (t), measured in days. The model that represents such decrease is described below:

m(t) = m_{o}\cdot e^{-\frac{t}{\tau} } (1)

Where:

  • m_{o} - Initial mass, in milligrams.
  • m(t) - Current mass, in milligrams.
  • \tau - Time constant, in days.

In addition, the time constant is defined in terms of half-life (t_{1/2}), in days:

\tau = \frac{t_{1/2}}{\ln 2} (2)

If we know that m_{o} = 85\,mg, t_{1/2} = 27.7\,d and m(t) = 8.5\,mg, then the time required for decaying is:

\tau = \frac{t_{1/2}}{\ln 2}

\tau = \frac{27.7\,d}{\ln 2}

\tau \approx 39.963\,d

t = -\tau \cdot \ln \frac{m(t)}{m_{o}}

t = -(39.963\,d)\cdot \ln \frac{8.5\,mg}{85\,mg}

t\approx 92.018\,d

About 92 days are taken for 90 % of the material to <em>decay</em>.

We kindly invite to check this question on half-life: brainly.com/question/24710827

8 0
3 years ago
Question 2 pater romuli remique erat ______. question 2 options: 1) mars 2) numitor 3) amulius 4) pastor save question 3 which i
Mamont248 [21]
<span>"Pater romuli remique erat _______" translates as "The father of Romulus and Remus is____". The answer is 1) Mars. According to myth Rhea Silvia, who is the mother of the two brothers, claimed that the father of her children was the god Mars.</span>
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4 years ago
Which ordered pair represents the x-intercept for the linear equation, 3y + 4x = 8?
jarptica [38.1K]
(0,8/3) is the answer
6 0
3 years ago
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I need an answer asap please
Tanya [424]

Answer:

The pattern is to Subtract from the previous number by 0.75

Step-by-step explanation:

The answer is 0.75 because 48.25 minus 0.75 equals 47.5 and if I subtract 47.5 by 0.75 you get 46.75

5 0
3 years ago
Read 2 more answers
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