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2 years ago

5

Has anyone done Exponential Growth and Decay (in mathematical models with application A) on sos or odysseware and gotten a prefe

ct score?? Pls help!
I need help on the whole assignmnet but particularly this question..

1 answer:

Lilit [14]2 years ago

4 0

Answer:

1) 62.5

2) 50

3) 75

4) 100

Step-by-step explanation:

1)

Because it has a half-life of 25 days, half of it will decay after 25 days.

After $25*4=100$ days, there will be $(1/2)^{4}=1/2^{4}=1/16$ of it left.

So, $1000/16=\boxed{62.5}$ .

2)

Because it has a half-life of 25 days, half of it will decay after 25 days.

After $25*3=75$ days, there will be $(1/2)^{3}=1/2^{3}=1/8$ of it left.

So, $400/8=\boxed{50}$

3)

Because it has a half-life of 25 days, half of it will decay after 25 days.

After $25*2=50$ days, there will be $(1/2)^2=1/2^{2}=1/4$ of it left.

So, $300/4=\boxed{75}$ .

4)

The only answer left is $\boxed{100}$ grams. You can solve it the same way you solved the previous steps.

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Evaluate the surface integral. s x2 + y2 + z2 ds s is the part of the cylinder x2 + y2 = 4 that lies between the planes z = 0 an

Leya [2.2K]

Parameterize the lateral face $T_1$ of the cylinder by

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where $0\le u\le2\pi$ and $0\le v\le3$ , and parameterize the disks $T_2,T_3$ as

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where $0\le r\le2$ and $0\le\theta\le2\pi$ .

The integral along the surface of the cylinder (with outward/positive orientation) is then

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7 0

3 years ago

What is the first step in solving the equation: 3(x+2) = 12?

yanalaym [24]

Answer:

Divide by 3 on both sides.

Step-by-step explanation:

Original Expression: 3(x+2) = 12

Divide by 3 on both sides: x+2 = 4

Subtract 2 from both sides: x=2

Let me know if this helps!

4 0

2 years ago

What is the total when the product of 57 and .22 is added to 7 percent of 57

11111nata11111 [884]

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6 0

3 years ago

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Sladkaya [172]

Answer: £225

Step-by-step explanation:

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Bridget gets twice as much as Caroline, therefore Bridget will get: 2 × 3x = 6x

Sarah = x

Caroline = 3x

Bridget = 6x

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= 3/10 × £750

= 0.3 × £750

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3 years ago

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storchak [24]

Answer:

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3 years ago