Answer:
279 silvery minnow
Step-by-step explanation:
Number of Silvery Minnows initially tagged = 54
Number of minnows captured = 62
Number of tagged minnows in captured ones = 12
Remember that in the very beginning there were no tagged minnows. 54 minnows were captured, tagged and released. This means, there are total 54 tagged minnows in the entire population. Lets say there are x number of minnows in total.
So, in x minnows, 54 are tagged ones.
When 62 minnows are captured, only 12 are tagged ones and remaining are un-tagged. Since, the minnows were randomly captured, we can develop a proportion from this case to estimate the total population of minnows in the Rio Grande River.
Ratio of tagged minnows to total population must be equal to the ratio of captured tagged minnows in total captured minnows.
i.e.
This means, there were 279 silvery minnows in the Rio Grande River.
Answer:
Step-by-step explanation:
As each exterior angle is 45o , number of angles or sides of the polygon is 360o45o=8 . Further as each exterior angle is 45o , each interior angle is 180o−45o=135o .
Answer:
i think it is E
Step-by-step explanation:
Answer:
yes it is possible to have a triangle with 8.8 cm, 8.0 cm and 8.8 cm.
Step-by-step explanation:
Condition on sides of triangle:
- The triangle inequality states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
- It is not possible to have sum to be less than the length of the third side.
- A triangle with three given positive side lengths exists if and only if those side lengths satisfy the given condition
- Let a, b and c be three sides of triangle.
Here, we are given that a = 8.8 cm, b = 8.0 cm, c = 8.8 cm
We check for the triangular inequality:
Thus, yes it is possible to have a triangle with given measurements.
Answer:
130 and 211
Step-by-step explanation:
15+17= 32
17+32=49
32+49=81
49+81=130
81+130=211
