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yawa3891 [41]
2 years ago
8

Can someone please help?

Mathematics
1 answer:
noname [10]2 years ago
7 0

Answer:

2

Step-by-step explanation:

this one is correct

1/5+1/5=2/5

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Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. Whe
Rama09 [41]

You can see how this works by thinking through what's going on.

 

In the first year the population declines by 3%.  So the population at the end of the first year is the starting population (1200) minus the decline: 1200 minus 3% of 1200.  3% of 1200 is the same as .03 * 1200.  So the population at the end of the first year is 1200 - .03 * 1200.  That can be written as 1200 * (1 - .03), or 1200 * 0.97

 

What about the second year?  The population starts at 1200 * 0.97.  It declines by 3% again.  But 3% of what???  The decline is based on the population at the beginning of the year, NOT based no the original population.  So the decline in the second year is 0.03 * (1200 * 0.97).  And just as in the first year, the population at the end of the second year is the population at the beginning of the second year minus the decline in the second year.  So that's 1200 * 0.97 - 0.03 * (1200 * 0.97), which is equal to 1200 * 0.97 (1 - 0.03) = 1200 * 0.97 * 0.97 = 1200 * 0.972.

 

So there's a pattern.  If you worked out the third year, you'd see that the population ends up as 1200 * 0.973, and it would keep going like that.

 

So the population after x years is 1200 * 0.97x

5 0
3 years ago
the pictograph below shows number of packages of different brand of batteries at a store sold on Fridaywhich statement is best s
Wewaii [24]
I am happy to help... but <span>Please be more specific with your question. </span>
8 0
3 years ago
Write the Taylor Series for f(x) = sin (x)center<br> 4x^4+3x^3+2x^2 x 8 centered at a 2
algol [13]

Answer:

attached images

Step-by-step explanation:

8 0
3 years ago
How do you solve this problem?
yaroslaw [1]
Hope this helped! I decided to write it out for you so it would be easier to explain.

8 0
2 years ago
Is my answer correct? <br> --&gt; tell me why i'm wrong if that's the situation please!!
BlackZzzverrR [31]

Answer:

the correct one is c, which is the second option

Step-by-step explanation:

The exterior angle of a polygon is 360.

And for a rectangle, they have equal exterior angles.

So a rectangle has 4 sides

So each exterior angle=360/4

Then each is 90°

Then the correct c which has 90°

8 0
3 years ago
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