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forsale [732]
3 years ago
7

Suppose that the population density of a certain area is 80 people per square mile. If about 440,000 people live in this area, w

hat is the best estimate for the area?
Mathematics
1 answer:
madam [21]3 years ago
8 0

The answer is B)  5,500 mi^2

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ST has endpoints Y(-2, -4) and T (6, 8). Find the coordinates of the midpoint of ST
storchak [24]

add up the X values and y values and divide by two

X=(-2+6)/2=2

Y=(-4=8)/2=2

5 0
3 years ago
Read 2 more answers
A triangle has side lengths of (10x + 7y) centimeters, (3x + 3z) centimeters, and (8z +10y) centimeters. Which expression repres
Kay [80]

Answer:

(D) 13x + 17y + 11z

is right answer

8 0
3 years ago
A cylinder is filled with 900 liters of water.find the area of its base if height of cylinder is 20dm.
Lisa [10]
The formula of the volume of a cylinder:

V=\pi r^2H\\\\where:\\\\r-a\ radius\\H-a\ height\\\pi r^2-an\ area\ of\ base

We have:

V=900\ liters\\1L=1dm^3\ therefore\ V=900L=900dm^3

and

H=20\ dm

substitute:

\pi r^2\cdot20=900\ \ \ |:20\\\\\pi r^2=45\ dm^2

Answer: The area of a base of the cylinder is equal 45 dm².
5 0
3 years ago
The poplution of Las vegas, Nevada has been increasing at an annual rate of 7.0%. If the poplution of las vegas was 478,434 in t
bearhunter [10]
Where x is years after 1999, the population is predicted to be ...
  p(x) = 478,434*1.07^x

For x=11, this is
  p(11) = 478,434*1.07^11 ≈ 1,007,033

The relation predicts the Las Vegas population in 2010 to be 1,007,033.
5 0
3 years ago
Which could be a first step in solving the equation
Airida [17]

A first step in solving the equation 1/4 x + 1/2 = 3/4x will be answer A multipllied by 4 on both sides.

What is an equation?

The equation is actually a relationship between the numbers and the variables.The given equation is  1/4 x + 1/2 = 3/4x

Now the solution of the equation will be:-

1/4 x + 1/2 = 3/4x

By multiplying with 4 the equation will become:-

x+2=3x

3x-x=2

2x=2

x=1

Hence the solution of the given equation will be x=1

To know more about equations follow

brainly.com/question/2972832

#SPJ1

7 0
2 years ago
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