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melomori [17]
3 years ago
9

The profit (in thousands of dollars) of a company is given by P(x) = -8x2 + 32x + 14.

Mathematics
1 answer:
andre [41]3 years ago
5 0

Answer:

C

Step-by-step explanation:

The profit (in thousands of dollars) of a company is given by the function:

\displaystyle P(x) = -8x^2+32x+14

And we want to find the maximum profit of the company.

Since the function is a quadratic with a negative leading coefficient, the maximum profit will occur at its vertex. Recall that the vertex of a quadratic is given by:

\displaystyle \text{Vertex} = \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)

Find the <em>x-</em>coordinate of the vertex. In this case, <em>a</em> = -8, <em>b</em> = 32, and <em>c</em> = 14. Hence:

\displaystyle x=-\frac{(32)}{2(-8)}=\frac{32}{16}=2

To find the maximum profit, substitute this value back into the function. Hence:

\displaystyle P(2) = -8(2)^2+32(2) + 14 = 46

Therefore, the maximum profit of the company is 46 thousand dollars.

Our answer is C.

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Select the expression that is equivalent to (2x^2 +5)-5/2
anyanavicka [17]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve :

  • {(2 {x}^{2}  + 5) }^{  - \frac{5}{2} }

  • \dfrac{1}{{(2 {x}^{2}  + 5) }^{ \frac{5}{2} } }

  • \dfrac{1}{ \sqrt{( 2{x}^{2}  + 5) {}^{5} } }

therefore, the correct choice is :

  • A
3 0
3 years ago
What ratio of height to width is considered most appropriate in graphing a frequency distribution?
Fiesta28 [93]
Answer:
As a rule of thumb, it is usual to define discrete data in 5 to 10 groups or bins. When graphed, the height of each group or bin defines the frequency for the group or bin.

Explanation:
When discrete data is graphed into a histogram, it defines a frequency distribution. Because information becomes lost when too many groups or bins are used, it is customary to use 5 to 10 bins.

Example:
Consider the following random data which has a sample size of 16.
x = [1, 3, 6, 2, 9, 8, 4, 5, 10,  3, 5, 4, 3, 5, 7,  5]
When fewer groups or bins are used to construct the histogram, the centralized nature of the distribution is easy to discern.
As the number of bins increases, the distribution becomes more difficult to define.



3 0
3 years ago
a number consist of 2 digits the digit in tens place is twice unit place the no. formed by reversing the digit is 27 less than o
luda_lava [24]

Answer:

63

Step-by-step explanation:

If x units, then 2x tens

Number is: 2x(10)+x = 21x

Reversing digits:

2x units and x tens,

Number is: x(10)+2x = 12x

21x - 12x = 27

9x = 27

x = 27/9 = 3

Original number: 21x = 21(3) = 63

6 0
4 years ago
15 points
skad [1K]

Lines that are parrellell presume to have the same slope.

So if we just calculate the slope of a function or a line we should be good.

s=\dfrac{\Delta{y}}{\Delta{x}}=\dfrac{y_2-y_1}{x_2-x_1}

Now put in the data from the coordinates of the points A(3,-1)\wedge B(1,7)

s=\dfrac{7-(-1)}{1-3}=\dfrac{8}{-2}=\underline{-4}

The form of a function now looks like: f(x)\vee y=-4x+n

From here we are no longer required to calculate anything more. Leave n alone.

The solutions are the equations of the form above.

That would mean:

y=-4x \\y=-4x+8 \\y+1=-4(x+1) \\y-6=-4(x-3)

Hope this helps.

5 0
3 years ago
6. Let the side length of each small square on the grid represents 1 unit. Draw two
rusak2 [61]

Answer:

View graph

Step-by-step explanation:

we know that the area of ​​a triangle is base by height between two

A=\frac{b.h}{2}\\194=\frac{5.h}{2}\\h=\frac{194*2}{5}=77.6u

Therefore, regardless of the classification of the triangle, the area will be 194 units for any triangle that has 5 base units and 77.6 units high

4 0
3 years ago
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