The subtraction of the given expression will be (x²-9x +1).
<h3>What is subtraction?</h3>
The method of removing or deleting anything from the given set will be defined as subtraction. It is represented by the negative sign '-'.
The subtraction will be calculated as:-
E = (–3x² + 7 – 2x) – (6 + 7x – 4x²)
Arrange the terms in the above expression.
E = ( -3x²+4x²-2x-7x-6+7)
E = ( x² - 9x + 1 )
Therefore the subtraction of the given expression will be (x²-9x +1).
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Answer:
rational
Step-by-step explanation:anything that can be put over a denominator of one is rational for example 8/1 is 8 so rational
Since V = (4/3) pi*r^3, r^3 = V / [(4/3)*pi ].
1200 ft^3
Here, r^3 = ---------------
[(4/3)*pi ]
Evaluate this, and then take the cube root of your result, and then you'll have the radius.
Once you have this radius, the surface area will be A = 4*pi*r^2.
Answer:
10240
Step-by-step explanation:
please explain this let me judge my solving
Answer:
a. 1620-x^2
b. x=810
c. Maximum value revenue=$656,100
Step-by-step explanation:
(a) Total revenue from sale of x thousand candy bars
P(x)=162 - x/10
Price of a candy bar=p(x)/100 in dollars
1000 candy bars will be sold for
=1000×p(x)/100
=10*p(x)
x thousand candy bars will be
Revenue=price × quantity
=10p(x)*x
=10(162-x/10) * x
=10( 1620-x/10) * x
=1620-x * x
=1620x-x^2
R(x)=1620x-x^2
(b) Value of x that leads to maximum revenue
R(x)=1620x-x^2
R'(x)=1620-2x
If R'(x)=0
Then,
1620-2x=0
1620=2x
Divide both sides by 2
810=x
x=810
(C) find the maximum revenue
R(x)=1620x-x^2
R(810)=1620x-x^2
=1620(810)-810^2
=1,312,200-656,100
=$656,100