A study is done on the population of a certain fish species in a lake. Suppose that the population size P(1) after years is given by the following exponential
function.
P(t) = 400(1.22)
Find the initial population size.
Does the function represent growth or decay?
O growth O decay
By what percent does the population size change each year?

Answers

Answer 1

Answer:

Growth22%

Step-by-step explanation:

Given function:

[tex]P(t) = 400(1.22)^{t}[/tex]

Initial population size is when t = 0

P(0) = 400(1.22)⁰ = 400(1) = 400

The multiple of 1.22 is applied every year, so the ratio of change is:

1.22 = 122% = 100% + 22%

This is an exponential growth which represents 22% annual growth.

Answer 2

The function is

y=400(1.22)^t

As per y=ab^x

1.22 is the rate of change

Its growth as it's greater than 1

The percentage increase is

1.22-10.2222%

Related Questions

Is Figure B a scale copy of Figure A?
8
LA
13
2.
1
6
Figure A
3
Figure B

Answers

Yes figure b is a copy of a

What is the volume of a hemisphere with a diameter of 37.6 m, rounded to the nearest tenth of a cubic meter?

Answers

Answer:

13916.6m^3

Step-by-step explanation:

PLEASE HELP !!! ILL GIVE BRAINLESS

Answers

Answer:

a. ∠G = 180 - (90 + 32)

b. ∠G = 58°

c. ∠J = 180 - 58°

d. ∠J = 122°

Step-by-step explanation:

Angles are added to result in 180°

when the line is straight; thus:

a.

∠G = 180 - (90 + 32)

b.

∠G = 180 - 122

∠G = 58°

c.

∠J = 180 - 58°

d.

∠J = 122°

_____________________

#IndonesianPride - kexcvi

I need help with this

Answers

Answer:

13.5

Step-by-step explanation:

4+5 = 9.

9/2 = 4.5

4.5 * 3 = 13.5

Can y’all do 5-6 please.I have this whole thing due at 12:00 lol.

Answers

for 6, federalist party? sorry if im wrong

Which equation matches the hanger?
y = 6.3
3y = 6.3
y/3 = 6.3
y + 3 = 6.3

Answers

3y = 6.3 is the answer

Answer:

B 3y=6.3

Step-by-step explanation:

On the hangers left side there are 3 Y's so we would put that together as 3y

On the hangers right side there is a rectangle with a whole of 6.3

The 3y would equal with the 6.3

A soccer field is a rectangle 90 meters wide and 120 meters long. The coach asks the players to run from one corner to the corner diagonally across the field. How far do the players run?

Answers

Answer:

150 meters

Step-by-step explanation:

Answer:

150 metres

Step-by-step explanation:

We can imagine the rectangle, when cut diagonally it forms a Right angled Triangle

Using this we can find the diagonal i.e hypotenuse.

From the question we know that,

Length = 120 metres

Width = 90 metres

So we can find the diagonal by keeping it as x using the pythogorean theorem.

[tex] {120}^{2} + {90}^{2} = {x}^{2} \\ 14400 + 8100 = {x}^{2} \\ 22500 = {x}^{2} \\ x = \sqrt{22500} \\ x = 150[/tex]

b for which -x^2+8x+20=b will have no real roots​

Answers

Answer:

Step-by-step explanation:

-x² + 8x + 20 = b

-x² + 8x + 20 - b = 0

a = -1 ; b = 8 ; c = 20 - b

 There is no real roots.

So, b² - 4ac < 0

Plug in a, b and c values

8²- 4(-1)(20-b) < 0

When we multiply (-1) and (-4), we will get 4

64 + 4(20 - b) < 0

64 + 4*20 - 4b < 0

64 + 80 - 4b < 0

144  - 4b    < 0

Subtract 144 from both sides

-4b < -144

Divide both side by -4 and when we are dividing by (-4), < will change to >

b > -144/-4

b > 36

So, when value of b is greater than 36, the equation will have no real roots.

Charlie grew 3/4 of an inch on her 7th birthday. Her twin sister Lucy grew 1/2 of an inch. How much more did charlie grow more than lucy?

Answers

Answer: 1/4

Step-by-step explanation: 3/4-1/2= 1/4

Out of the 232 media executives, 6 of them control 90% of all media outlets. If there are a total of 400 major
media outlets, how many are controlled by those 6 executives.

Answers

Answer:

360

Step-by-step explanation:

6 executives control 90% of the 400 major media outlets

so we need to find 90% of 400

first, convert 90% to a decimal and multiply

0.9•400 gives us 360

so 360 media outlets are controlled by those 6 executives

hope this helps babe <3

Maddie and Josh are trying to clean the roof of their house. They place the base of the ladder 3 feet away from the base of the house. Their ladder is 27 feet long. What angle does the ladder make with the ground?

Answers

Answer:

83.6 degrees

Step-by-step explanation:

A farmer sows 100 seeds of a new type of corn and wants to quickly determine the yield, or total number of ears of corn, for the crop when it has matured. He decides to take a simple random sample of the crop. Which of the following correctly labels the population?

00–99
01–99
0–99
1–100

Answers

Answer:

00–99

Step-by-step explanation:

I got it Correct

The correct label for the population would be: 1-100 as per the given scenario.

What is population?

In statistics, a population refers to the entire group of individuals, objects, or measurements that the researcher is interested in studying.

In this scenario, the population refers to the entire group of items or people that the farmer is interested in studying.

In this case, the population is the total number of ears of corn produced by all 100 seeds sown by the farmer.

As a result, the population's correct label would be: 1-100. Because the farmer is interested in the yield of all 100 seeds, the population includes all possible outcomes of the experiment, ranging from one to one hundred ears of corn.

Option A, B, and C do not include all possible outcomes, whereas option D includes the number 0, which is not an option in this scenario.

Thus, the answer is 1-100.

For more details regarding population, visit:

https://brainly.com/question/27991860

#SPJ7

Write the equation of a line that has a slope of 3 and passes through the point (5, 7).
O y = 3x + 8
O y = 5x + 7
O y = 3x - 8
O y = 7x + 5

Answers

Answer:

y = 3x - 8    

Step-by-step explanation:

All the options are written in slope-intercept ( [tex]y = mx + b[/tex]) form. So, what we can do with the given information is write the equation in point-slope form first, then convert it to slope-intercept form.  

1) First, use the point-slope formula [tex]y-y_1 = m (x-x_1)[/tex] to find the point-slope equation of the line. Substitute [tex]m[/tex], [tex]x_1[/tex], and [tex]y_1[/tex] for real values.

Since [tex]m[/tex] represents the slope, substitute 3 in its place. Since [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point the line intersects, substitute the x and y values of (5,7) into the appropriate places in the formula as well. This gives the following equation of the line in point-slope form:  

[tex]y-7 = 3(x-5)[/tex]

2) Now, isolate y in the above equation to find its slope-intercept form.

[tex]y-7=3(x-5)\\y-7 = 3x-15\\y = 3x -8[/tex]

Thus, the answer would be the third option as it matches the result we received.

10=0.5f

What’s the answer to “f”?

Answers

Answer: 20

Step-by-step explanation: to find f, you divide 10 by 0.5 to see what’s left. When you divide it you get 20. To check your work multiply 0.5 by 20 and you’ll see that it equals 10.

Sally invests £8000 in a savings account.
The account pays 2.8% compound interest per year.
Work out the value of her investment after 4 years.
Give your answer to the nearest penny.

Answers

Answer:

£8934.34

Step-by-step explanation:

[tex]8000 * 1.028^4 = 8934.34[/tex]

rounding to 2dp

if trunctuated at 2dp however, 8934.33

the number is multiplied by 1.028 to the power of four as you go through the equation four times, so it would be the same as

x * n * n * n * n, where it would simplify to x * n^4

What is categorical data

Answers

Answer:

Categorical variables represent types of data which may be divided into groups. It can not measure.

Step-by-step explanation:

What is the GCF of the terms of the polynomial −12y^4 + 8y^3 – 4y^2?

Answers

Answer:

the GCF of the terms of the polynomial −12y^4 + 8y^3 – 4y^2 is:

4 y^2

What is the slope of the line?

Answers

-3/2

slope = rise/run

We can use the two points to calculate rise (y value change) and run (x value change)

slope = (-6)/4 = -3/2

Hi can someone tell me what this is in y=mx+b please?​

Answers

Answer: y= 5x +7

Slope is rise over run. From the two given points we rise 10 and run 2 which is 10/2 or 5.

7 is how high/low we are when we are at x=0

Answer:

Hi!

y= 5x+7

The five is the slope and i counted from the point on the y axis until the next point on the line. Which is 10/2. simplified that is 5/1 or just 5.

The seven in where the line intercepts the y axis.

Hope this helps! Have a good day and don't forget to be tiger fierce!! :)

what is the solution to the system of equations x-y=5 and 3x+7y=-5​

Answers

Answer:

Step-by-step explanation:

3(x-y)-3x-7y=3(5)-(-5)

3x-3y-3x-7y=15+5

-10y=20

y=-2, since x-y=5

x-(-2)=5

x+2=5

x=3

So the solution is the point (3,-2)


What is the perimeter of ABCD?
14 units
38 units
44 units
49 units
ANSWER: C) 44 units

Answers

It’s 38 u it’s bc Ik it is

Question 1: How much fabric is needed for a round table cloth?



Assume the radius is 10 inches. How much fabric would you need?

Answers

Answer:

50 yards because of the roundness of the table

Area of circle is: π • r^2
A= π•r^2
r=10in
A= π•10^2
A=3.14 • 100
A=314 in^2

Can someone plz help me plz I beg u the answer choices are at the bottom just pls

Answers

Answer:

Step-by-step explanation:

Problem to solve:
b) The Smith family has five members. They go to the beach for a day. Each member has a small towel and a
beach towel. How many towels did they bring to the beach?

Answers

Answer:

25 towels hahha

Step-by-step explanation:

does -7/10 = -4/5? plz hurry

Answers

Answer:

False

Step-by-step explanation:

_7/10 does not equal -4/5

Answer: No.

Step-by-step explanation: The left side, -0.7 doesn't equal the right side, -0.8, so it is false.

To find equivalent fractions, multiply the the numerator and denominator by the same whole number.

[tex]-\frac{7}{10}\times\frac{2}{2} =-\frac{14}{20}[/tex]

[tex]-\frac{7}{10}\times\frac{3}{3} =-\frac{21}{30}[/tex]

[tex]-\frac{7}{10}\times\frac{4}{4} =-\frac{28}{40}[/tex]

And so on...

[tex]-\frac{4}{5}\times\frac{2}{2} =-\frac{8}{10}[/tex]

[tex]-\frac{4}{5}\times\frac{3}{3} =-\frac{12}{18}[/tex]

[tex]-\frac{4}{5}\times\frac{4}{4} =-\frac{16}{20}[/tex]

And so on...

If we keep doing this, they won't equal each other.

So no, they're not equivalent.

HELP IT'S DUE IN 10 MINUTES
Noelle rode her bike 5/10 of a kilometer to the library, and then another 22/100 of a kilometer to her friend's house. How far did Noelle ride her bike in all?
A. 27/110
B. 7/10
C. 72/100
D. 225/100

Answers

Answer:

C. 72/100

Step-by-step explanation:

3. Solve for the side length of BA and AC. * (image attached)
1 point
Captionless Image
BA = 8, BA = 30
BA = 8, AC = 16
BA = 8, AC = 8√2
BA = 8, AC = 8√3

Answers

Ba = 8,ac = 16 is the correct one

Answer:

D. BA = 8, AC = 8√3

Step-by-step explanation:

First, because this is a right triangle, refer to the trigonometric ratios:

tangent = opposite side/adjacent side

sine = opposite side/hypotenuse

cosine = adjacent side/hypotenuse

BA is the opposite side to the angle measure given, ∠C—which is 30°—and we have the measure of BC. BC is the hypotenuse, as it is across from the right angle of the right triangle. So we can use sine:

sine = opposite side/hypotenuse

sin(30) = BA/16

sin(30) / 1 = BA / 16

Cross multiply:

BA = sin(30) (16)

BA = 8

AC is the adjacent side to the angle measure given, ∠C—which is 30°—and we have the measure of BC. BC is the hypotenuse, as it is across from the right angle of the right triangle. So we can use cosine:

cosine = adjacent side/hypotenuse

cos(30) = AC/16

cos(30) / 1 = AC / 16

Cross multiply:

AC = cos(30) (16)

AC = 8√3

You can check by using the Pythagorean Theorem:

a² + b² = c²

8² + (8√3)² = 16²

64 + 192 = 256

256 = 256

If a simple machine requires an effort of 20 newtons to lift a load of 100 newtons, its
mechanical advantage is:
a. 5
b. 5N
c. 5MA​

Answers

Answer:

A. 5

Step-by-step explanation:

A. 5
Hope this helps!

1. Are two congruent figures similar? Explain.​

Answers

Answer:

Yes

Step-by-step explanation:

Congruence means two objects (whether two dimensional or three dimensional) are identical in size and shape. Everything about them -- their angles, lengths of sides, overall dimensions -- are identical. Similar means being the same shape. Two congruent figures must be the same shape, so they are similar.

Hope that helps!

-Sabrina

In ΔBCD, the measure of ∠D=90°, the measure of ∠B=71°, and DB = 67 feet. Find the length of BC to the nearest tenth of a foot.

Answers

Answer:

in triangle BCD

relationship between base and hypotenuse is given by cos angle

cos 71=b/h

cos71=BD/BC

cos71=67/x

x=67/cos71=205.8ft.

the length of BC to the nearest tenth of a foot is 206ft.

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