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
wel
3 years ago
11

India has a population density of 840 people per sq. mile. If we estimate the population of the US to be 300,000,000 and the tot

al land area to be 3,500,000 sq miles, what is our population density?
85.7 people/ sq mi
8 people/ sq mi
840 people/sq mi
300,000,000 people/ sq mi
Mathematics
1 answer:
raketka [301]3 years ago
3 0

Answer:

  • A. 85.7 people/ sq mi

Step-by-step explanation:

<u>Population density is:</u>

  • Pd = population / area
  • Pd = 300000000 people / 3500000 sq mi = 85.7 people/ sq mi

Correct option is A

You might be interested in
What is the area of angle ABC? Round to the nearest tenth
otez555 [7]
Area formula: L · W · H
Length: 0.5
Width: 5
Height: 5

Answer: 12.5²

(It's squared because 5√2 contains a square root.) 
5 0
3 years ago
The ratio of boy campers to the number of girl campers is 8:7.  If there are a total of 195 children, how many are boys and how
Luden [163]
8x-amount\ of\ boys\\7x-amount\ of\ girls\\\\8x+7x=195\\&#10;15x=195\ \ \ |Divide\ by\ 15\\x=13\\\\&#10;8x=8*13=104\\&#10;7x=7*13=91\\\\&#10;\textbf{There\ are\ 104\ boys\ and\ 91\ girls.}
7 0
4 years ago
Customers at Beans Coffee Shop have entered their name in a drawing for one of 4 gift cards. The gift cards each have a value of
Dimas [21]

Answer:

36,060,024 ways

Step-by-step explanation:

To choose the winner in this case, the order is very important because it determines who is chosen first  out of the seventy-nine customers whose names were entered for the draw.

The above supports the reason Permutation will be used instead of Combination.

The total number of ways is given by:

⁷⁹P₄ = 79!/(79-4)!

       =  79!/75!

       = [79 x 78 x 77 x 76 x75!]/75!

       = 79 x 78 x 77 x 76

       =   36,060,024 ways

This implies that there are  36,060,024 ways the Bean Coffee Shop could choose the winners.

8 0
3 years ago
Find the maximum profit and the number of units that must be produced and sold in order to yield the maximum profit. Assume that
V125BC [204]

Answer:

-1.39

Step-by-step explanation:

Revenue and cost as a function of units sold are u(x) = 9x-2x^{2}andc(x)=x^{3}-3x^{2}+4x+1  respectively.

we are have to know for which value or input units are these functions at maximum which translates to for how many units is the revenue maximum and for how many same units is our cost minimum.

5 0
4 years ago
A person stands 10 feet away from the base of a 300-foot office building.
snow_tiger [21]

Answer:

The answer will be A.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Using synthetic division, find (x^4 − 2) ÷ (x + 1).
    8·1 answer
  • If k pencils cost c cents what is the cost in cents of p pencils
    6·1 answer
  • The box plot shows the total amount of time, in minutes, the students of a class spend studying each day: A box plot is titled D
    11·1 answer
  • Under the USMCA agreement, exports will increase to both Canada&amp;Mexico
    10·1 answer
  • What is x^2+6x=x^2-6x as a system?
    10·1 answer
  • Pls help ill give brainly
    15·2 answers
  • ......................help
    14·1 answer
  • The quotient of a number and-2
    6·1 answer
  • Solve the equation 3 sin q = 0.977.​
    8·1 answer
  • What is the answer to x/3+8=-2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!