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dmitriy555 [2]
3 years ago
15

Write a function to model set of data

Mathematics
1 answer:
Elza [17]3 years ago
5 0
The answer should be approximately 0.4
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7. A=15; b= (blank); c= 17
kondor19780726 [428]

Answer:b is 16

Step-by-step explanation:a is 15 and c is 17. So what comes in between those numbers, exactly 16

6 0
3 years ago
Help me please! I need to find the answer for the angle indicated in bold!
bagirrra123 [75]

(x+ 63) + (x + 133) = 180 \\ 2x + 196 = 180 \\ 2x =  - 16 \\ x =  - 8 \\ so... \\ x + 133 = ( - 8 ) + 133  \\  = 125
8 0
3 years ago
HELP ME PLEASE
solmaris [256]

Answer:

The initial mass of the sample was 16 mg.

The mass after 5 weeks will be about 0.0372 mg.

Step-by-step explanation:

We can write an exponential function to model the situation.

Let the initial amount be A. The standard exponential function is given by:

P(t)=A(r)^t

Where r is the rate of growth/decay.

Since the half-life of Palladium-100 is four days, r = 1/2. We will also substitute t/4 for t to to represent one cycle every four days. Therefore:

\displaystyle P(t)=A\Big(\frac{1}{2}\Big)^{t/4}

After 12 days, a sample of Palladium-100 has been reduced to a mass of two milligrams.

Therefore, when x = 12, P(x) = 2. By substitution:

\displaystyle 2=A\Big(\frac{1}{2}\Big)^{12/4}

Solve for A. Simplify:

\displaystyle 2=A\Big(\frac{1}{2}\Big)^3

Simplify:

\displaystyle 2=A\Big(\frac{1}{8}\Big)

Thus, the initial mass of the sample was:

A=16\text{ mg}

5 weeks is equivalent to 35 days. Therefore, we can find P(35):

\displaystyle P(35)=16\Big(\frac{1}{2}\Big)^{35/4}\approx0.0372\text{ mg}

About 0.0372 mg will be left of the original 16 mg sample after 5 weeks.

5 0
3 years ago
Multiply: (3x – 5)(–x + 4)
LiRa [457]

Answer:

Step-by-step explanation:

(3x – 5)(–x + 4)

(3x)(–x) + (3x)(4) + (–5)(–x) + (–5)(4).

-3x^2+12x +5x -20

-3x^2+ 17x -20

4 0
3 years ago
Read 2 more answers
An expression is shown 342 / 8 What is the quotient expressed as a fraction?
tekilochka [14]
/ also means division so the answer is 42.75
5 0
3 years ago
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