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Debora [2.8K]
3 years ago
13

Scientists tag and release a group of salmon after they hatch. Later, they catch a sample of salmon that return to the river and

check them for tags. In one sample, 40 out of 800 returning salmon have tags. What is the best prediction of the total number of tagged salmon in a sample of 2000? PLEASE HELP IF U DONT IMA BE SO MAD
Mathematics
1 answer:
Liula [17]3 years ago
7 0

The best prediction of the total number of tagged salmon in a sample of 2000 is 100.

<h3><u>Predictions</u></h3>

To determine what is the best prediction of the total number of tagged salmon in a sample of 2000, the following calculation must be performed:

  • 800 = 40
  • 2000 = X
  • 2000 x 40 / 800 = X
  • 80000 / 800 = X
  • 100 = X

Therefore, the best prediction of the total number of tagged salmon in a sample of 2000 is 100.

Learn more about predictions in brainly.com/question/18152997

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Please help! Thank you so much.
inysia [295]

Answer:

4 over 5

Step-by-step explanation:

its 4 over 5 because your going to get a decimal and the other answers you will get a integer which the question isnt asking for so the answer is 4 over 5

4 0
4 years ago
Find the unknown measure of the rectangle.<br> Area =28 square centimeters <br>Height =?
taurus [48]
Area of rectangle = Length*width
A = 28  so 28 = 4 * height
height  = 28/4 = 7
6 0
3 years ago
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The monomial of the 2nd degree with a coeficcient of 3
uranmaximum [27]
I assume it is the last one, 3n^2, because the degree is the exponent, which is two and the three is the coefficient, which is next to the variable, plus it is a monomial, so there is only one term, eliminating the first two, the third one is just reversed. Therefore, the answer should be the last one. Hope this helps. :)
4 0
3 years ago
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Find the area of the shape shown below.​
Tamiku [17]

Answer:

28 square units.

Step-by-step explanation:

Let us divide the shape into two rectangles and a right triangle. The resulting composite figure is attached.

As we see in the figure the area A_T of the triangle is

A_T= \frac{1}{2} (2)(4)=4\: units^2.

The area A_{r1} of the bigger rectangle is (it's actually a square )

A_{r1}=4*4=16\:units^2,

and the area of the smaller rectangle is

4*2 =8\:units^2.

Therefore, the total area A_{tot} of the shape is

A_{tot}= A_T+A_{r1}+A_{r2}

A_{tot}= 4\:units^2+16\:units^2+8\:units^2

\boxed{A_{tot}=28 \:units^2}

5 0
3 years ago
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The fastest and correct answer gets brainiest! Pls don't send file links that open different tabs
MAXImum [283]

Answer:

16/9

Step-by-step explanation:

(4/3) ^2

(4/3) * (4/3)

First the numerators

4*4 = 16

Then the denominators

3*3 = 9

Numerator over denominator

16/9

7 0
3 years ago
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