Last year, a population of rabbits had 20 births, 10 deaths, 15 individuals immigrate, and 15 individuals emmigrate.
What is the change in population size for the rabbits that year?

Answer: third one ( I could be wrong )

Step-by-step explanation:

Answer:

its the 3rd one

Step-by-step explanation:

Answer:

The total surface area of this object is 510 cm^2.

Step-by-step explanation:

Here L = 12 cm, W = 7 cm and H = 9 cm.  

There are 2 panels 12 by 9 cm, 2 panels 12 by 7 cm, and 2 panels 7 by 9 cm.  The combined areas are:  

2(108 cm^2) + 2(84 cm^2) + 2( 63 cm^2)  =  510 cm^2 total area

Answer:

4 and 1/2 hours or 270 minutes

Step-by-step explanation:

Each student spend 30 minutes to set up the puppet show.

+30

They spent twice as long to put everything away.

+30 +30

Current total: 90 minutes

The show was open for three hours

+180 (60 minutes in an hour x 3 hours)

Current total: 270

Total: 270 minutes

OR

Divide 270 by 60 minutes in an hour, which would be 4.5 hours.

Answer: 1 hour and 30

Step-by-step explanation:

First, you multiply 30 minutes x2 and get 60. 60 minutes is an hour so now you have an hour. Then you add 30 minutes to that and get 1 hour and 30 minutes. Then, you subtract 3 hours minus 1 hour, and 30 minutes and get 1 hour and 30 minutes.

Answer:

100km/h

Step-by-step explanation:

The formula for speed is:

v  =  x / d  =  500/5  =  100km/h

Answer:

I think it's A

Step-by-step explanation:

Sorry if I'm wrong

supplementary angles = 180°

180 - 39 = 141 °

141°

Answer:

d supplementary angle is s answer to me

Answer:

5 x 3 = 15, 15 x 4 = 60

60 x 1/3(basically just dividing by 3) = 20 in3

Answer:

H) 20

Step-by-step explanation:

Formula for the volume of a rectangular pyramid:

V = (whl)/3

Given:

w = 3

h = 4

l = 5

Work:

V = (whl)/3

V = (3 × 4 × 5)/3

V = (60)/3

V = 20

Answer:

$116

Step-by-step explanation:

The Simple Interest formula is i = prt.  Here,

i = ($1,450)(0.04)(2 yr) = $116

Answer:

54 ft

Step-by-step explanation:

Add all the side lengths ; 18+18+18 = 54.

Answer:

1200ft^3

Step-by-step explanation:

30 x 20 x 2= 1200^3

Answer:

cant see picture its blocked off

Step-by-step explanation:

Answer:

[tex]t = 4\\[/tex]

or

[tex]t=0.6875[/tex]

Step-by-step explanation:

[tex]124 = -16t^2+75t+80\\-16t^2+75t-44=0[/tex]

Solving for t using the quadratic formula we get:

[tex]t = 4\\[/tex]

or

[tex]t=0.6875[/tex]

The times taken by the ball to be 24 feet above the ground is t = 4 and t = 0.68 seconds.

The function given for the height of the ball thrown is;

h(t) = -16t^2+75t+80

In which, h is the  height in feet,

t, is the time till ball is in air( in seconds. )

When height h = 124 feet.

Time t = ?

Put h = 124 in the given equation.

124 =  -16t^2+75t+80

On solving.

-16t^2+75t-44 = 0.

16t^2 - 75t + 44 = 0.

Solve the quadratic equation by the quadratic formula,

t = 4 and t = 0.68 seconds.

Thus, the times taken by the ball to be 24 feet above the ground is t = 4 and t = 0.68 seconds.

To know more about the function, here

https://brainly.com/question/25638609

#SPJ2

The probability that a randomly selected ticket holder from yesterday is a child or was on the evening trip is 0.62 or 62%.

To calculate the probability that a randomly selected ticket holder from yesterday is a child or was on the evening trip, we will use the formula: $P(\text{Child or Evening Trip}) = P(\text{Child}) + P(\text{Evening Trip}) - P(\text{Child and Evening Trip})$.We are given that there were 7 children on the morning trip and 24 adults on the evening trip.

Therefore, the number of children who were on the evening trip is 0. Hence, $P(\text{Evening Trip}) = 24/50 = 0.48$.

Similarly, the number of children who were not on the evening trip is 7, while the number of adults who were not on the evening trip is $50 - (7 + 24) = 19$. Hence, $P(\text{Child}) = 7/50 = 0.14$.

Since no child was on the evening trip, $P(\text{Child and Evening Trip}) = 0$.

Substituting these values in the formula above, we get: $P(\text{Child or Evening Trip}) = 0.14 + 0.48 - 0 = 0.62$

Therefore, the probability that a randomly selected ticket holder from yesterday is a child or was on the evening trip is 0.62 or 62%.

For more such questions on probability

https://brainly.com/question/30390037

#SPJ8

Answer:

x=8 or x=1 1/5

Step-by-step explanation:

x-8=0   5x-6=0

x=8       5x=6

             5x/5=6/5

               x=1.2 or 1 1/5

I hope this helps! :)

32

22+10=32yd ...............

Answer:

The answer is 32. Sorry need the points.

Answer:

3n meble

3n - 3 meble pozostały

Step-by-step explanation:

n stoły

2n - 3 krzesła

n + 2n = 3n

Answer:

56

Step-by-step explanation:

by the formula at the bottom, it would be 1/2h(b1 + b2)

so h = height and the height is 7 feet. 1/2 of 7 feet is 3.5

b1 would be 12 feet, and b2 would be 4 feet. so first let’s do the (.    )

12 + 4 = 16

now the problem is 3.5(16)

3.5 x 16 = 56

now i just went off the formula, but i think that’s right. good luck!

Answer:

56

Step-by-step explanation:

Area of a Trapezium = 1/2 × sum of parallel sides× height

= 1/2× (12+4)×7

=1/2 × 16×7

= 8×7

= 56

Answer:

$12 is 3% of $400, triple the value is $1200, it would take 100 months, or 8 years

Answer:

92

Step-by-step explanation:

an iscosolice triagle is a triangle with the sam lenghth on both sides

Answer:

1 /320 inches

Step-by-step explanation:

thickness of each card

7/8 ÷ 280

7/8 x 1/280 = 1/320 in

Answer:

Krystal collected 315 pop-can tabs while Natasha collected 565 pop-can tabs.

Step-by-step explanation:

Let x be number of pop-can tabs Krystal collected

Krystal: x

Natasha: x + 250

x + x + 250 = 880

2x = 880 - 250

2x = 630

x = 315

Krystal: 315 pop-can tabs

Natasha: 315+250 = 565 pop-can tabs

Answer:

sorry its 2

Step-by-step explanation:

from 11 to 13 it is 2