Answer:
5^5-7^2= 3076
Step-by-step explanation:
5^5=3125
5*5*5*5*5
7^2=49
3125-49=3076
Hope this helps! Remember you are smart and you got this! Have a great day -Alycia
Answer:
The answer is D - 382
Step-by-step explanation:
The volume of a sphere can be calculated using this simple formula:
V = 4/3 x 3.14(pi) x r cubed(to the third)
So, V = 4/3 x 3.14 x 4.5 cubed
V = approximately 382
Let width of the rectangular plot be x meters
then total of widths = 2x
and the length would be (550 - 2x) meters.
so the area = x(550 - 2x) = 550x - 2x^2
to find the maximum are find the derivative and equate to zero:-
f'(x) = 550 - 4x = 0
x = 550/4 = 137.5 meters = width
length = 550 - 2(137.5) = 275
Maximum area is when width = 137.5m and length = 275m
The answer is A. The vast majority of our energy generation still comes from fossil fuels such as coal, oil, and natural gas, all of which result in carbon dioxide and pollutant emissions to the atmosphere.
Solar panels using sunlight is not an issue, because sunlight is virtually unlimited to us right now.
Wind turbines varying power supply is not an environmental issue but a reliability one, and this is often solved by linking wind energy with others like solar or hydropower. Either way, this does not have significant environmental impact.
People living close together is not an environmental impact either. This is more for efficient distribution of power, such as through electric substations and power lines.
