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
anygoal [31]
3 years ago
9

1. The 2010 census reported about 308.7 million people in the United States. The 2000 census reported a population of about 281.

4 million. By about what percent did the population change? Did the population grow or shrink?
Mathematics
1 answer:
solong [7]3 years ago
7 0
Let C be the percentage change. 
<span>C = 100*(308.7 million - 281.4 million)/(281.4 million) = 9.7%. This is positive, so the population grew. </span>
<span>- - - - - - - - - - - - - </span>
You might be interested in
suppose Monica walks 1 kilometer every 15 minutes how many meters further can she walk in 1 hour at this new rate
zzz [600]
If Monica walks
1km...........................15min
?km............................60min
60/15=4
Monica walks 4km in 60 min(1H)
1km=1,000m
4km=4,000m in 1 hour
6 0
3 years ago
If two polygons are similar, they are congruent.<br> Always true sometimes true or never true?
charle [14.2K]

Answer:

It is true.

Step-by-step explanation:

congruent polygons have the exact same size and are a perfect match because all corresponding parts are congruent (equal). ... This means that if two polygons are similar, then their corresponding angles are congruent

5 0
3 years ago
What is the surface area in square inches of a cube with a side 7<br> inches long?<br> 10
SVETLANKA909090 [29]

Answer:

28

Step-by-step explanation:

7x4

5 0
2 years ago
Read 2 more answers
Need help with the following question
andrew11 [14]
3 times. Draw a line 1 unit up, and you can see that there are 3 intersections.
4 0
2 years ago
A balloon has a circumference of 28 in use the circumference to approximate the surface area of the ballon to the nearest square
nikklg [1K]

The surface area of the balloon is 249 in².

<h3>What is the surface area of the balloon ?</h3>

A balloon has the shape of a sphere. The distance round the sphere is equal to the circumference of the sphere.

Circumference of the sphere = 2πr

Where:

  • r = radius
  • π = pi = 22 / 7

Radius - circumference / 2π

28 / ( 2 x 22/7) = 4.45 inches

Surface area of a sphere = 4πr²

4 x 22/7 x 4.45² = 249 in²

To learn more about the surface area of a sphere, please check: brainly.com/question/27267844

#SPJ1

5 0
1 year ago
Other questions:
  • Mrs. Mary Moolah invested $20,000 in
    11·1 answer
  • What are the x-intercepts of the graph of the function f(x)= x^2+4x-12
    17·1 answer
  • Which of the following is a characteristic of a line?
    5·1 answer
  • Select all answers that apply. Wave diffraction depends on the:
    15·2 answers
  • Step by step explanation please so I can see how to do it
    15·1 answer
  • Please help ,,
    11·1 answer
  • How many real and how many are imaginary<br> Please Explain how to do it
    14·2 answers
  • Find the value of the variables ​
    6·1 answer
  • Y (y + 2) = y2 - 6<br> also<br> 2 [x - (1-3x)] = 3 (x + 1)
    8·1 answer
  • Will mark brainliest if you can help!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!