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3 years ago

100 peso 100 animales

Mathematics

2 answers:

lozanna [386]3 years ago

6 0

Hopefully we are adding these..
100peso + 100 animales = 200 altogether.

:)

Galina-37 [17]3 years ago

5 0

Thats is 200 total 100 peso plus 100 animales is 200

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Which of the following represents "the difference between ten and a number is the sum of eight and a number"? 10 - N(8 + N) 8 -

Setler [38]

Answer:

$\Huge \boxed{10-N=8+N}$

Step-by-step explanation:

<h2>Algebraic expressions</h2>

Difference: should be subtract.

N: should be a number.

Sum: Add

Therefore, the correct answer is 10-N=8+N.

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2 years ago

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2 years ago

the half-life of chromium-51 is 38 days. If the sample contained 510 grams. How much would remain after 1 year?

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Answer:

About 0.6548 grams will be remaining.

Step-by-step explanation:

We can write an exponential function to model the situation. The standard exponential function is:

$f(t)=a(r)^t$

The original sample contained 510 grams. So, a = 510.

Each half-life, the amount decreases by half. So, r = 1/2.

For t, since one half-life occurs every 38 days, we can substitute t/38 for t, where t is the time in days.

Therefore, our function is:

$\displaystyle f(t)=510\Big(\frac{1}{2}\Big)^{t/38}$

One year has 365 days.

Therefore, the amount remaining after one year will be:

$\displaystyle f(365)=510\Big(\frac{1}{2}\Big)^{365/38}\approx0.6548$

About 0.6548 grams will be remaining.

Alternatively, we can use the standard exponential growth/decay function modeled by:

$f(t)=Ce^{kt}$

The starting sample is 510. So, C = 510.

After one half-life (38 days), the remaining amount will be 255. Therefore:

$255=510e^{38k}$

Solving for k:

$\displaystyle \frac{1}{2}=e^{38k}\Rightarrow k=\frac{1}{38}\ln\Big(\frac{1}{2}\Big)$

Thus, our function is:

$f(t)=510e^{t\ln(.5)/38}$

Then after one year or 365 days, the amount remaining will be about:

$f(365)=510e^{365\ln(.5)/38}\approx 0.6548$

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2 years ago

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I think it’s a carrot I just need points

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2 years ago

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maria [59]

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A line is a one dimensional figure that is formed by joining an infinite set of points.
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Answer:
Line ..............> A) infinite number of points extending in opposite directions that has only one dimension

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It is the same as the line. The only difference is that a line segment has a fixed start point and a fixed end point. It is considered to be a portion of a line
Answer:
Line segment .........> D) a part of a line that has two endpoints

3- Ray:
A ray is also a one dimensional shape. A ray usually has a start point but no end point.
Answer:
Ray .........> B) part of a line that has one endpoint and continues in one direction infinitely

4- Point:
A point is a dimensionless geometric shape. It is only used to state a certain location.
Answer:
Point .........> C) a location, has no dimension

5- Vertex:
A vertex is a term that is used to refer to the point where the two rays forming an angle meet.
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Vertex ........> E) the common endpoint of two segments or rays that form the corner of an angle

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2 years ago