Hello from MrBillDoesMath!
Answer:
2 * (Pi r^2) + (Pi r^2)*h
where r = C/(2 Pi)
Discussion:
Total surface area of cylinder =
area of bottoms + surface area of cylinder =
2 * area of base + (area of base) * h
Generally, C = 2 Pi r, so r = C/(2 Pi) is known as we are given C. . Plugging this in the above equation gives
2 * (Pi r^2) + (Pi r^2)*h
Thank you,
MrB
one Brian's item cost: x
one Chris' item cost: x+2.5
Set up equation:
Brians amount = Chris amount
4*x = 3*(x+2.5)
solve for x:
4x = 3x + 7.5
x = 7.5
Brian's items cost $7.5 each.
Check:
Brian paid 4*7.5 = $30
Chris paid 3*10 = $30
The individual cost of Brian's items was $7.50, and the indiv. cost of Chris' items was $10.
25% of 150000 is 0.25 * 150000 = 37500
So, they now cost 150000 + 37500 = 187500 and that is the answer you are looking for
Infinite solutions for this
Answer:
<h2>(f-g)(x) = x² - 3x - 24 </h2>
Step-by-step explanation:
f(x) = x² - 2x - 24
g(x) = x + 4
To find (f-g)(x) subtract g(x) from f(x)
That's
(f-g)(x) = x² - 2x - 24 - ( x + 4)
(f-g)(x) = x² - 2x - 24 - x - 4
Group like terms
We have
(f-g)(x) = x² - 2x - x - 24 - 4
Simplify
We have the final answer as
<h3>(f-g)(x) = x² - 3x - 28</h3>
Hope this helps you