The population of an endangered bird was about 230,000 in 2001. The equation y= 200,000(0.75)^x describes the bird la population, let x represent the number of years since 2001. Using the equation, how many birds will there be in 2021?

Answers

Answer 1

Answer:

634

Step-by-step explanation:

The population of the birds in 2001 = 230000

From 2001 to 2021 = 20 years

Given:

y = 200000[tex](0.75)^{x}[/tex]

where x is the number of years since 2001.

The population of the birds after 20 can be determined by;

y = 200000[tex](0.75)^{20}[/tex]

  = 200000(3.171211939 x [tex]10^{-3}[/tex])

  = 634.2424

y = 634

Thus, there would be 634 endangered birds in 2021.


Related Questions

Untitled Question
5 points
Which of the following points lies in the solution set of the inequality
y 3x + 10?
a) (1, 10)
c) (4, 20)
b) (-1,3)
d) (2, 16)

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I think the answer is D if not sorry

If the graph of f(x)= 3^x is reflected over the x-axis, what is the equation of the new graph?

Answers

Answer:

g(x) = - 3^x

Step-by-step explanation:

Reflection over x-axis results in:

f(x) → - f(x) translation

Therefore the new function is:

g(x) = - 3^x

Can someone help me with this and make sure to explain (8th grade math)

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Answer: [tex]\boxed{439.82}[/tex]Solution Steps:

____________________________

1.) To find lateral surface the formula is: [tex]2[/tex]π[tex]r[/tex] × [tex]h[/tex][tex]2[/tex]π[tex]7[/tex] × [tex]10[/tex]2.) Solve:[tex]2[/tex]π[tex]7[/tex] × [tex]10=439.822972[/tex]

____________________________

Help plss I will mark as brainlest if correct

Answers

Answer:

y= - 1/4x - 3

Step-by-step explanation:

THIS IS URGENT PLZ HELP!!

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Answer:

a^-b= 1/a^b

a^b/a^c= a^b-c

a^c/b^c= (a/b)^c

Step-by-step explanation:

Those are the right answers.

Please help me 10 points for answering questions 3 and 4

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Answer:

yes more points

Step-by-step explanation:

tysm

-4x+3y=6 in
slope intercept

Answers

Answer:

y=4/3x+2

Step-by-step explanation:

The equation is in standard form right now, which is ax+by=c

your question is asking for slope intercept form, which is y=mx+b

so we need to isolate y onto 1 side

-4x+3y=6

add 4x to both sides

3y=4x+6

divide by 3 on both sides

y=4/3x+2

The highest recorded temperature in the world was at Azizia, Libya, on September 13, 1922. The temperature was 58.0°C. The lowest temperature, -88.3°C, was recorded at the Soviet Antarctic station Vostok on August 24, 1960. What is the difference in these two temperatures?

Answers

Answer:

the difference in these two temperatures is 146.3°C

Step-by-step explanation:

The computation of the difference in these two temperatures is as follows:

= Highest temperature - lowest temperature

= 58.0°C - (-88.3°C)

= 58.0°C + 88.3°C

= 146.3°C

Hence, the difference in these two temperatures is 146.3°C

It is determined by the applying the above formula and the same is relevant

Last night, the temperature fell from 0°F to -13 in 4 § hours. What was the average temperature change per hour? Solve the division problem. 2 1 -13= - 4 5 5 The temperature drop per hour can be represented by I °F. QUICKLY​

Answers

Answer:

3.25 degrees/hour

Step-by-step explanation:

Last night, the temperature fell from 0°F to -13°F in 4 hour.

We need to find the average temperature change per hour. It can be calculated by dividing the change in temperature per unit time.

Change in temperature = -13°F -0°F = -13°F

So,

[tex]C=\dfrac{-13}{4}\\\\=-3.25\ \text{degrees/hour}[/tex]

So, the change in temperature is 3.25 degrees/hour.

Answer:

-3.25 degrees an hour

Step-by-step explanation:

-13 ÷ 4 = -3.25

2.00llons is
equal to how
many liters

Answers

2 us liquid gallons =
7.571 liters

Leroy wrote an expression that is equivalent to (20+10)divided (2•3)

Answers

Answer:

30/6

Step-by-step explanation:

20+10=30

2*3=6

Fill in the blanks to name each complex number
shown in the plane to the right.

point x: __ + __i

point w: __

point z: __

Answers

Answer:

-3,2

4

-4i

ON E2020

Have a Great Day :)

Point x is -3 + 2i , point w is 4 + 0i and point z will be 0 + -4i.

What is a complex number?

Complex numbers are helpful in finding the square root of negative numbers.

A complex number is the sum of a real number and an imaginary number.

The idea of a complex number has come by solving a quadratic equation that has root as negative under root.

If we solve x² + 1 = 0 ⇒ x = √(-1) which is called as iota(i).

Given points, x,y, and z in a complex plan where an x-axis is a real number and the y-axis is an imaginary (i.e. i ) number.

So,

Point x is 3 units to the negative side and 2 units up so its coordinate will be (-3, 2i) so -3 + 2i.

Point w is 4 units to the positive side and 0 units up so its coordinate will be (4,0i) so 4 + 0i.

Point z is 4 units downside so its coordinate will be (0,-4i) so  0 + -4i.

To learn more about complex numbers,

brainly.com/question/10251853

#SPJ5


BRAINLEST to whoever


Solve the given proportion

X= ?

Answers

Answer:

49

Step-by-step explanation:

y= 1/6x - 1


Find the slope

Answers

Answer:

m=1/6

Step-by-step explanation:

Which expression is not equivalent to 3x-2

Answers

Answer: Let's simplify step-by-step.

3x−2

There are no like terms.

So it going to be the same, =3x-2

Step-by-step explanation: hope you understand

Answer:

2x + 2 + x

Step-by-step explanation:

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Answers

Answer:

for the first on its a=24 and for the second its a= 48

Step-by-step explanation:

for the first one you have to find the length which is 8 and then you find the width which is 3 then you multiply that to get 24

for the second one you find the base which is the strait line which is 8 then you find the height which is 6 then you multiply it to get 48 i hopes this helped!

Write 5√4 using rational exponents.

Answers

Answer:

5(4)^1/2 is the correct answer

Step-by-step explanation:

hope this helps

What is the ratio of 19:95? QUICK I NEED HELP!

Answers

Answer:

1 : 5

Step-by-step explanation:

Given the ratio

19 : 95 ( divide both parts by 19 )

= 1 : 5 ← in simplest form

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Answers

Acute triangle because it has three acute angles. An acute-angled triangle is a type of triangle in which all the three internal angles of the triangle are acute, that is, they measure less than 90°.

Answer:

hmm. I would say right.

Step-by-step explanation:

The angle when you flip your triangle is 90 degrees.

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Answer:c

Step-by-step explanation:

Answer:

subtract to eliminate x

Step-by-step explanation:

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Answers

Answer:

b = 5.2

c = 3.5

Step-by-step explanation:

By 45°- 45° - 90° triangle theorem:

[tex]c = \frac{1}{ \sqrt{2} } \times 5 \\ \\ c = \frac{1}{ 2} \times 5 \sqrt{2} \\ \\ c = 2.5 \times 1.414\\ \\ c = 3.535 \\ \\ c \approx \: 3.5[/tex]

By 30°- 60° - 90° triangle theorem:

[tex] b = \frac{ \sqrt{3} }{2} \times (2 \times 3) \\ \\ b = 3 \sqrt{3} \\ \\ b = 3 \times 1.732 \\ \\ b = 5.196 \\ \\ b \approx 5.2[/tex]

Christian saved 27% of the $8,500 he earned painting the toenails of tiny poodle as a Carney worker at the 2007 state fair. How much has he saved?

Answers

Answer:

maybe 23

Step-by-step explanation:

Find the perimeter and area

Answers

Answer:

perimeter = 14

area = 6

Step-by-step explanation:

p = 4 + 3 + 7

a = L × w

2

Answer:

Perimeter: 14m²n²cm

Area: 28m²n²

Explanation step bye step Given Data:

height: 4m²

length: 7mn²

base: 3mn²

To Find:

Perimeter =?

Area=?

Formula:

Perimeter: a + b + c

Area: length × height

Solution

Perimeter: a+b+c

= 4m²+7mn²+3mn²

= 14m²n² cm

Area: l×h

= 4m²×7mn²

= 28m²n²

please mark as brainliest answer pls

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Answers

Answer:

62.5%

Step-by-step explanation:

There are a total of 8 options.

We are trying to get 5 of the 8.

5/8 = 0.625 = 62.5%

50 – 5(4.3 – 1.3) ÷ 0.5

Answers

Answer:

(0.5, 1.3)(0.5, 1.3)

Step-by-step explanation:

Given equations are:

As we can see that the given equations are linear equations which are graphed as straight lines on graph. The solution of two equations is the point of their intersection on the graph.

We can plot the graph of both equations using any online or desktop graphing tool.

We have used "Desmos" online graphing calculator to plot the graph of two lines (Picture Attached)

We can see from the graph that the lines intersect at: (0.517, 1.267)

Rounding off both coordinates of point of intersection to nearest tenth we get

(0.5, 1.3)

Hence,

(0.5, 1.3) is the correct answer

Keywords: Linear equations, variables

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Answers

Answer:

y = 1/3x + 6

Step-by-step explanation:

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Answer:

4

Step-by-step explanation:

Substitute -3 for x.

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A D E Are Linear And B C F Are Non Linear.

Step-by-step explanation:

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Answer:

2, 3, 4, 5, 6

Step-by-step explanation:

Let's break this inequality into two parts:

3 < 3x - 1                    ←        Inequality I3x - 1 < 2x + 6            ←       Inequality II

Solve Inequality I.

3 < 3x - 1

Add 1 to both sides.

4 < 3x

Divide both sides by 3.

4/3 < x

Solve Inequality II.

3x - 1 < 2x + 6  

Subtract 2x from both sides.

x - 1 < 6

Add 1 to both sides.

x < 7

Combine these two inequality solutions.

4/3 < x < 7

Integer solutions to this inequality would be any integer between 1 (4/3 = 1.3...) and 7, exclusive.

These five numbers are 2, 3, 4, 5, 6.

Rick earned $133 for 7 hours of work. How much does Rick earn per hour?

Equation:

So, rick earns ___ per hour

Answers

Answer:

Step-by-step explanation:

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