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kupik [55]
4 years ago
5

How to salve this question its to hard and i don't get it at all pleas help

Mathematics
1 answer:
LuckyWell [14K]4 years ago
8 0
It's 20. You start with the parentheses and 8 + 12 is 20. Then you have the brackets next, and so that's 20/4 and that's 5. Then all you have left is 4 x 5 which is 20.
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About 1.2 million people live in a region with a 6-mile radius what is the population destiny in people per square mile
Paladinen [302]

Answer:

10616 people per square mile

Step-by-step explanation:

No. of people living in the region = 1.2 million

Radius of the area = 6 mile

Since radius of region is given, area of can be calculated by using formula to get area of circle which is \pi r^2 where r is radius of circle.

the value of pie is 3.14 which will be used in the calculation

Area of region

\pi r^2    \\=> 3.14 * 6^2\\=> 113.04

population density of any place is calculated by dividing the total population of region with area of the region

mathematically it can be written as

population density of any place = the total population of region / area of the region

substituting the value of  total population of region with 1.2 million and  area of the region as calculated 113.04 square mile we have

population density of any place = 1.2 million/113.04 square mile

 = 0.0106157113 million / square mile

Since one million is equal to 1,000,000

0.0106157113 million will be equal to 0.0106157113 * 1,000,000

= 10615.7113

rounding 10615.7113 nearest to unit value, it will be 10616.

Therefore, population density is 10616 people per square mile.

3 0
4 years ago
C. When the center of Earth is 2 x 10^11meters from the center of Mars, the force of gravity
tresset_1 [31]

Answer:

When the center of Earth is 2 × 1011 meters from the center of Mars, the force of gravity between the two planets is about 64.32 × 1014 newtons. The mass of Earth is about 6 × 1024 kilograms, and the mass of Mars is about 6.4 × 1023 kilograms. Using these values, estimate the gravitational constant.

6 0
3 years ago
Which equation represents the line shown on the graph? y=-2x у y = 2x 1 y = -x + 2 x -3-2-1 1 2 3 -2 -3 y = x + 2​
Karo-lina-s [1.5K]

Answer:

y = x + 2

Slope = rise / run

= 2 / 2 (or 1 bc 2 divided by 2 is 1)

The plotted point on the x axis is on 2

y = x + 2

6 0
4 years ago
-5(5 – 2x) = -95<br><br> show work and all steps please
Lady bird [3.3K]

Answer:

x = -7

Step-by-step explanation:

See the photo attached.

4 0
3 years ago
Read 2 more answers
suppose that the amount of algae in a pond doubles every 6 hours. if the pond initially contains 50 pounds of algae, how much al
Angelina_Jolie [31]
Initial = 50lbs
1st 6 hours =100
2nd 6 hours = 200
3rd 6 hours = 400
After 18 hours it will be 750 pounds
7 0
3 years ago
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