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iogann1982 [59]
3 years ago
15

Biologists tagged 139 fish in a lake on January 1, On February 1, they returned and collected a random sample

Mathematics
1 answer:
Bogdan [553]3 years ago
4 0

Answer:

417 fish

Step-by-step explanation:

139/(10/30)=139*3=417

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A bank charge 5.25672% annual percentage rate on a home mortgage . What is this number rounded to the nearest tenth ?
Lerok [7]

Answer:

C. 5.3

step by step explanation:

3 0
3 years ago
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How do you factorize p2 + 2p - 3 =0
julia-pushkina [17]

Answer:

Solution

p = {-3, 1}

Step-by-step explanation:

Simplifying

p2 + 2p + -3 = 0

Reorder the terms:

-3 + 2p + p2 = 0

Solving

-3 + 2p + p2 = 0

Solving for variable 'p'.

Factor a trinomial.

(-3 + -1p)(1 + -1p) = 0

Subproblem 1

Set the factor '(-3 + -1p)' equal to zero and attempt to solve:

Simplifying

-3 + -1p = 0

Solving

-3 + -1p = 0

Move all terms containing p to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + -1p = 0 + 3

Combine like terms: -3 + 3 = 0

0 + -1p = 0 + 3

-1p = 0 + 3

Combine like terms: 0 + 3 = 3

-1p = 3

Divide each side by '-1'.

p = -3

Simplifying

p = -3

Subproblem 2

Set the factor '(1 + -1p)' equal to zero and attempt to solve:

Simplifying

1 + -1p = 0

Solving

1 + -1p = 0

Move all terms containing p to the left, all other terms to the right.

Add '-1' to each side of the equation.

1 + -1 + -1p = 0 + -1

Combine like terms: 1 + -1 = 0

0 + -1p = 0 + -1

-1p = 0 + -1

Combine like terms: 0 + -1 = -1

-1p = -1

Divide each side by '-1'.

p = 1

Simplifying

p = 1

Solution

p = {-3, 1}

4 0
3 years ago
Which pairs of figures are congruent? Which pairs are similar?
Naily [24]

Answer:

sorry if wrong

Step-by-step explanation:

The first with the triangles is similar

the second one with the circles is non

the third one with the squares is non

the forth one with the different shape is both,

hope this helps

7 0
3 years ago
A factory store has two types of machines.
Nat2105 [25]

Answer:

c or d maybe d

Step-by-step explanation:

5 0
3 years ago
Simplify. this please<br>​
frez [133]

Answer: -125p12z18u3

Reason:

Square negative five twice, so: -5 x -5 x -5 = -125

The first squaring is -5 x -5, which is 25. The second squaring is 25 x (-5), which is - 125.

When it comes to the letters, they act like they are being multiplied.

(p4)3 = p12

(z6)3 = z18

(u)3 = u3

So the answer is -125p12z18u3.

Hope this helps! :)

4 0
3 years ago
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