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Katena32 [7]
3 years ago
14

To test an individual's use of a certain mineral, a researcher injects small amount of a radioactive form of that mineral into t

he person's bloodstream. The mineral remaining is the bloodstream is measured each day for several days. Suppose the amount of the mineral remaining in the bloodstream (in milligrams per cubic centimeter) t days after the initial injection is approximated by:
C(t)= 1/2 (4t+ 4)- 1/2

Find the rate of change of the mineral level with respect to time for 7.5 days.
Mathematics
1 answer:
Ostrovityanka [42]3 years ago
3 0

Answer:

dC/dt = 2 mg*cm³/s

Step-by-step explanation:

Given

C(t)= (1/2)*(4t+ 4)- (1/2)

we apply dC/dt as follows

dC/dt = d((1/2)*(4t+ 4)- (1/2))/dt = (1/2)*(4) = 2

⇒   dC/dt = 2 mg*cm³/s

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Can anyone help? i suck at math lol
aleksley [76]

Answer:16384

Step-by-step explanation:

4*4*4*4+4*4*4

6 0
3 years ago
A game spinner has eight equal sections: three sections numbered 1, one section numbered 2, and four sections numbered 3. The sp
baherus [9]

Answer:

The required probability is \frac{1}{8} or 0.125

Step-by-step explanation:

Consider the provided information.

The spinner is spin twice and we want the sum should be 5.

We can get 5 if first spin gives us 2 and second spin gives 3.

Or we can get 5 if first spin gives us 3 and second spin gives 2.

There are 8 section out off which Three sections numbered 1, one section numbered 2, and four sections numbered 3.

The probability of getting 2 is \frac{1}{8}

The probability of getting 3 is \frac{4}{8}

Now, the probability that the sum of the two spins will be five is:

\frac{1}{8}\times \frac{4}{8}+\frac{4}{8}\times \frac{1}{8} =\frac{4}{64}+\frac{4}{64}=\frac{1}{8}

Hence, the required probability is \frac{1}{8} or 0.125

6 0
4 years ago
Which statements are true? Check all that apply.
levacccp [35]

Answer:

1,3,5

Step-by-step explanation:

The radius of the cone is 9 units.

The height of the cone is 12 units

The volume of the cone is represented by the expression 1/3pi(9)^2(12).

8 0
3 years ago
What is the solution to the problem expressed to the correct number of significant figures? 15. 11 (142 × 16. 5) = ? A. 2,358 B.
olchik [2.2K]

The solution to the problem expressed  2358.

<h3>What is the meaning of significant figure?</h3>

Significant figure It is defined as the minimum number of digit us needed to express a number in scientific notation.

Therefore we get,

15.11+(142\times16.5)

First we have to multiply the given digits as per rule.

=15.11+2343

Now we will add both the digits, we get

=2358.11

As per given expression, we conclude that the number of significant figure is 4.

So, the answer will be, 2358.

Therefore, the correct option is, 2358.

To learn more about the significant figures visit:

brainly.com/question/24491627

8 0
2 years ago
HELP!!!!
ch4aika [34]

Answer:

8 y^{50}

Step-by-step explanation:

Given (64 y Superscript 100 Baseline) Superscript one-half.

Let us write it into an equation.

\left(64 y^{100}\right)^{\frac{1}{2}}

Apply radical rule: \sqrt[n]{a}=a^{\frac{1}{2}} and a^{m+n}=a^m+a^n

\begin{aligned}\left(64 y^{100}\right)^{\frac{1}{2}} &=\sqrt[2]{64 y^{100}} \\&=\sqrt[2]{8^{2} y^{50} y^{50}} \\&=\sqrt[2]{8^{2}\left(y^{50}\right)^{2}} \\&=8 y^{50}\end{aligned}

Hence, 8 y^{50} is equivalent to  (64 y Superscript 100 Baseline) Superscript one-half.

8 0
3 years ago
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