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Aleks04 [339]
2 years ago
15

(2x+3)(x-1) OuterDirections: Indicate the FOIL for the problem ​

Mathematics
1 answer:
34kurt2 years ago
6 0

Answer:

3x^{2} -2x+3x-3

Step-by-step explanation:

This is one of the easier things to do so definitely learn how to do it.

You just start by taking the first number in each parenthesis (F) and then multiply. 2x by x is 3x^2

Then take the outer (O) number from both problems, so the leftmost and rightmost number. 2x times -1 is -2x

Then take the two inner (I) numbers, 3 and x. Multiply and get 3x

Then take the last number in each parentheses (L) which is 3 and -1, get -3

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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
3 years ago
Find the sum of 456<br> and its opposite.
vazorg [7]
It’s sum is 456 and it’s opposite is 654
8 0
3 years ago
The difference of two numbers is 3. Their sum is 13. Find the numbers.
Elza [17]

Answer:

Answer:

The two numbers are 8 and 5

Explanation:

8 - 5 = 3

8 + 5 = 13

Hope this helps!

5 0
3 years ago
Please help me answer this question!
Kazeer [188]

Answer:

  • equation: y = -5/4x
  • slope: -5/4
  • point: (0, 0)

Step-by-step explanation:

The slope is found using the formula ...

  m = (y2 -y1)/(x2 -x1)

  m = (0 -5)/(0 -(-4)) = -5/4

  slope = -5/4

The second point can be used to keep it simple.

  point: (0, 0)

Point-slope equation:

  y -0 = -5/4(x -0)

  y = -5/4x . . . . . . . simplified

3 0
3 years ago
A social scientist surveyed a random sample of male musicians at a university about their practice habits. The graph below displ
Arada [10]

Answer:

C

Step-by-step explanation:

male musicians practice an avg 2/hrs a day

5 0
4 years ago
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