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Georgia [21]
3 years ago
15

To estimate the size of the grizzly bear population in a national park, rangers tagged and released 12 grizzly bears into the pa

rk. A few months later, 2 out of 21 grizzly bears sighted were tagged. Assuming the population of tagged bears in the population, estimate the number of grizzly bears in the population of this national park.
Mathematics
2 answers:
Allushta [10]3 years ago
3 0
All these ratios people are having trouble with today.

Its pretty easy once you get the hang of it.

So they release 12 grizzly.

We can say 12/x since we dont know the amount of grizzly bears in total.

We can then set 12/x equal to 2/21 and solve for x by using cross multiplication
Slav-nsk [51]3 years ago
3 0

Answer:

Its about 130

Step-by-step explanation:


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Which of the following equations represents a line that passes through the points
Sladkaya [172]

Answer:

both are right

Step-by-step explanation:

okay so you already know that the y-intercept is 4 since a point is (0, 4)

but not to find the slope you can use the y2-y1/x2-x1

16 - 4/ -8 - 0 = 12/-8 = 3/-2

or

4 - 16/ 0 - (-8) = -12/8 = -3/2

it doesnt matter which you plug in first

so we know the slope (m) is -3/2 and the y-intercept (b) is 4, now to put it into an equation:

y = mx + b

y = -3/2x + 4

also im going to put this in slope-intercept form

3x + 2y = 8

-3x           -3x

2y = -3x + 8

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y = -3/2x + 4

y = -3/2x + 4 = y = -3/2x + 4

so both answers equal each other, meaning they both are right

5 0
4 years ago
Jerry makes $40,000 a year working at a nearby factory. He gets two weeks paid vacation per year, plus five other paid holidays.
JulijaS [17]

Answer:

Vacation pays are not included in salaries. Therefore, Jerry's calculation is wrong.

Step-by-step explanation:

Given is :

Jerry makes $40,000 a year working at a nearby factory.

He gets two weeks paid vacation per year, plus five other paid holidays.

So total paid holidays become = 14+5=19 days

Subtracting 19 from 365 days and assuming that Jerry works for 365 days a year.

We get = 365-19=346 days

So, his per day salary will be = \frac{40000}{346}= 115.60

Vacation pays are not included in salaries. Therefore, Jerry's calculation is wrong.

4 0
3 years ago
Read 2 more answers
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alexandr1967 [171]
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7 0
3 years ago
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rusak2 [61]

Answer:

Bro lemme tell you the real answer

Step-by-step explanation:

The answer is C and I actually have proof.  You said that the triangle has 3 unequal sides.  This means that it is a scalene triangle.  Scalene triangles do not have any equal angles

Still dont believe me?

Heres a picture

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Answer:

(300.5) * (-0.2)

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7 0
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