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marissa [1.9K]
2 years ago
6

Subtract 6(x^2-xy) from 3x(x-y)

Mathematics
2 answers:
den301095 [7]2 years ago
7 0

3 {x}(x - y) - 6 ({x}^{2}  - xy) \\  = 3 {x}^{2}  - 3xy - 6 {x}^{2}  + 6xy \\ =  3xy - 3 {x}^{2}

=3x(y-x)

rusak2 [61]2 years ago
4 0

Answer:

-3x ( x - y )

Step-by-step explanation:

3x ( x - y ) - 6 ( x² - x y )

<em>Solve the brackets.</em>

3x² - 3 x y - 6x² + 6 x y

<em>Combine like terms.</em>

3x² - 6x² - 3 x y + 6 x y

-3x² + 3 x y

Factorize the answer.

<u>-3x ( x - y )</u>

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The sum of fifteen and six times a number t is eighty one what is the number
yKpoI14uk [10]

Answer: t=11 :))


Step-by-step explanation:

15+6t=81

6t=81-15

6t=66

6t/6=66/6

t=11

7 0
3 years ago
What is W in this equation <br> -w–11≤w–5
zhannawk [14.2K]

Step-by-step explanation:

-w - 11 < or = w - 5

-2w - 11 < or = -5

-2w < or = -16

w > or = -8

5 0
3 years ago
2.
FromTheMoon [43]

Answer:

The dimensions of the park is 18yd by 18yd

Step-by-step explanation:

A square-shaped park has an area of 324 yd.

A square is composed of equal length dimensions so if the area is 324 yd² ,the dimensions or length if one side of the square will be the root of 324 yd².

Length= √324

Length= 18 yd

Dimensions of the park is 18 yd by 18 yd

3 0
3 years ago
How would I do the steps to solve this?
allsm [11]

Answer:

The maximum revenue is 16000 dollars (at p = 40)

Step-by-step explanation:

One way to find the maximum value is derivatives. The first derivative is used to find where the slope of function will be zero.

Given function is:

R(p) = -10p^2+800p

Taking derivative wrt p

\frac{d}{dp} (R(p) = \frac{d}{dp} (-10p^2+800p)\\R'(p) = -10 \frac{d}{dp} (p^2) +800 \ frac{d}{dp}(p)\\R'(p) = -10 (2p) +800(1)\\R'(p) = -20p+800\\

Now putting R'(p) = 0

-20p+800 = 0\\-20p = -800\\\frac{-20p}{-20} = \frac{-800}{-20}\\p = 40

As p is is positive and the second derivative is -20, the function will have maximum value at p = 40

Putting p=40 in function

R(40) = -10(40)^2 +800(40)\\= -10(1600) + 32000\\=-16000+32000\\=16000

The maximum revenue is 16000 dollars (at p = 40)

3 0
2 years ago
Please help me with this ASAP.
Simora [160]

Answer:

C

Step-by-step explanation:

If you add the first equation up you get 2z+6 by combining like terms

if you see A a is equal to 3z+6 so a doesn’t work

If you look at B b is equal to z+12 so b doesn’t work

finally C if you distibute it out you get 2(z)+2(3) which equal 2z+6 which works

C

7 0
3 years ago
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