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yKpoI14uk [10]
2 years ago
11

Evaluate f(x) = -x to the second power + 1 for x = -3

Mathematics
1 answer:
professor190 [17]2 years ago
5 0
I think it's 4 Yeah 4 something like that
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Widget Wonders produces widgets. They have found that the cost, c(x), of making x widgets is a quadratic function in terms of x.
AnnyKZ [126]

The total cost of producing 6 widgets is $24 if the company also discovered that it costs $16 to produce 2 widgets, $18 to produce 4 widgets, and $48 to produce 10 widgets.

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}

Let's suppose the quadratic function is:

c(x) = ax² + bx + c

Plug c(x) = $16

x = 2

16 = 4a + 2b + c ...(1)

Plug c(x) = $18

x = 4

18 = 16a + 4b + c ...(2)

Plug c(x) = $48

x = 10

48 = 100a + 10b + c ...(3)

After solving equations (1), (2), and (3) by substitution method:

a = 0.5

b = -2

c = 18

c(x) = 0.5x² -2x + 18

Plug x = 6 widgets:

c(6) = 0.5(36) - 12 + 18 = $24

Thus, the total cost of producing 6 widgets is $24 if the company also discovered that it costs $16 to produce 2 widgets, $18 to produce 4 widgets, and $48 to produce 10 widgets.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ1

5 0
2 years ago
During each minute of a comedy show, Carlin laughs 55 times. Carlin watches 33 comedy shows every day, and each show is 40 minut
postnew [5]

Answer:


Step-by-step explanation:

So if she’s laughing 55 times a minute you wanna multiply 55 by 40 which gives you 2200 so during one show she laughs 2200 times, and if she’s watched 33 shows you want to multiply your 2200 answer for one show by 33 which is a total of 72600


4 0
3 years ago
What is (x-10)+(3x-6)
ruslelena [56]
Hi Jessica

(x - 10) + (3x - 6)
Eliminate the parenthesis
x - 10 + 3x - 6
Combine like terms
x + 3x - 10 - 6
4x - 16


I hope that's help ! 

6 0
2 years ago
Read 2 more answers
2x+3y= -1<br> 3x+4y = -4
Mariana [72]

Answer:

Point Form- (-8,5)

Equation Form- x= -8, y= 5

Add the equations in order to solve for the first variable. Plug this value into the other equation in order to solve for the remaining variables.



3 0
3 years ago
Divide 406 by −14. A) −29 B) −34 C) 34 D) 44
bija089 [108]
It would be 
A. -29 

Hope this helps ! 

7 0
3 years ago
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