1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lemur [1.5K]
3 years ago
10

A city's population increases by 5% every year. If its population today is 300,000, write a function that models the population

after x years.
Mathematics
1 answer:
ratelena [41]3 years ago
6 0

Answer:

f(x) = 300,000(1.05)^x

Step-by-step explanation:

Use the exponential growth equation:

f(x) = a(1 + r)^x

Plug in 300,000 as a, since it is the original population:

f(x) = 300,000(1 + r)^x

The city's population is growing at 5% each year, so plug in 0.05 as r:

f(x) = 300,000(1 + 0.05)^x

f(x) = 300,000(1.05)^x

So, the function for the population growth is f(x) = 300,000(1.05)^x

You might be interested in
8^(x-3)=16^(3x+1) solve
rusak2 [61]

Answer:

x = -13/9

Step-by-step explanation:

Solve for x over the real numbers:

8^(x - 3) = 16^(3 x + 1)

Hint: | Take logarithms of both sides to turn products into sums and powers into products.

Take the natural logarithm of both sides and use the identity log(a^b) = b log(a):

3 log(2) (x - 3) = 4 log(2) (3 x + 1)

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by log(2):

3 (x - 3) = 4 (3 x + 1)

Hint: | Write the linear polynomial on the left hand side in standard form.

Expand out terms of the left hand side:

3 x - 9 = 4 (3 x + 1)

Hint: | Write the linear polynomial on the right hand side in standard form.

Expand out terms of the right hand side:

3 x - 9 = 12 x + 4

Hint: | Isolate x to the left hand side.

Subtract 12 x - 9 from both sides:

-9 x = 13

Hint: | Solve for x.

Divide both sides by -9:

Answer: x = -13/9

4 0
2 years ago
A teacher kept track of how much money each of her students raised for the fundraiser. She put the data in the line plot graph.
Svetradugi [14.3K]

Answer:

The answer is C!

Step-by-step explanation:

You just have to count the all the x's that are at 50 and after!

I hope this helps you!

7 0
3 years ago
Read 2 more answers
What is the distributive property of -3(8-b)
Alex787 [66]

Answer:

-24 + 3b

Step-by-step explanation:

-3 times 8 - -3 times b

-24 - -3b

and leave it alone cause its not like terms

5 0
4 years ago
The distance from the top of the cone to the edge is 15 feet. The height of the cone is 6 feet. What is the radius of the cone?
soldi70 [24.7K]

Answer:

The radius of the cone is approximately 13.4 feet

Step-by-step explanation:

The dimensions of the given cone are;

The distance from the top of the cone to the edge of the cone = 15 feet

The height of the cone = 6 feet

The radius of the cone is given by the base of the right triangle formed by the slant length, the base radius and the height which is found using Pythagoras theorem as follows;

The radius of the cone, r = √((Slant distance)² + (Height)²)

∴ r = √((12 ft.)² + (6 ft.)²) ≈ 13.4 ft. (by rounding to the nearest 10th)

8 0
4 years ago
What is slope? Answer is 3 examples
Lisa [10]

Slope is a measure of how steep a line on a graph is.  You find slope by using a formula to find it (y2-y1/x2-x1) or by finding the rise over run of the line by analyzing the graph.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Need some help with indefinite integrals pleasee
    7·1 answer
  • What is X to the fourth power times x to the negative 8th power
    15·2 answers
  • The quilt is 2.44 m long and 1.83 m wide what is the area of the quilt in square feet
    7·1 answer
  • If f(x) and f–1(x) are inverse functions of each other and f(x)=2x+5, what is f–1(8)?
    7·2 answers
  • 7x square- 20x-3 solving ax square+bx+c=0 by factoring
    8·1 answer
  • The difference between two numbers is 12. Two times the smaller plus the larger is 78. Find the two numbers.
    11·1 answer
  • PLEASE ANSWERRRRRRRRRR
    8·1 answer
  • 4 gallons of paint are use to paint 25 chairs if each chair needs the same amount of paint how many gallons are use to paint eac
    6·1 answer
  • Why is the solution to the following equation? x+(-21)=8
    13·1 answer
  • Help me help me pls............
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!