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BabaBlast [244]
2 years ago
13

Please help with this

Mathematics
1 answer:
9966 [12]2 years ago
6 0

Answer:

D

Step-by-step explanation:

The first graph curves down

The second graph is not symmetrical on the y axis

The third graph is much higher than the picture

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The total cost of producing a type of tractor is given by C(x)=11000−20x+0.02x2, where x is the number of tractors produced. How
marissa [1.9K]

Answer:

Step-by-step explanation:

You need to complete the square.

C(x) = 0.02(x^2 - 1000x  ...)  + 11000

C(x) = 0.02 (x^2 - 1000x + 500^2) + 11000 - 5000

C(x) = 0.02 (x^2 - 1000x + 500^2) + 6000

C(x) = 0.02(x - 500)^2 + 6000

Now if you look at the answer you will find that the square is completed. That means that number of tractors you could produce is 500 at a cost of 6000

There is a flow to this question that you may have trouble understanding.

First of all the 500^2. That comes from taking 1/2 of 1000 and squaring it. That's what you need to complete the square.

Bur that is not what you have adding into the equation. Remember that there is a 0.02 in front of the brackets.

500^2 = 250000

0.02 * 250000 = 5000

So that number must be subtracted to make the square = 0. When you remove the brackets, you should get 11000 all in all.

So what you have outside the brackets is 11000 - 5000 = 6000

The rest is just standard for completing the square.

5 0
2 years ago
Can someone help me figure out the answer?
olga_2 [115]

Answer:

y = -2x +15

Step-by-step explanation:

The point-slope form of the equation for a line through (h, k) with slope m is ...

... y - k = m(x - h)

For your point (h, k) = (5, 5) and slope m = -2, the equation in point-slope form is ...

... y - 5 = -2(x - 5)

Simplifying, we get

... y - 5 = -2x +10

Adding 5 puts the equation into slope-intercept form, as you want.

... y = -2x +15

8 0
3 years ago
Tara ran 3 laps around her neighborhood for a total of 1 mile yesterday today she wants to run 2/3 of a mile. How many laps will
ivann1987 [24]

Answer:

2

Step-by-step explanation:

6 0
3 years ago
Shaded area is 51 pi cm squared. The diameter of the larger circle is 20cm. Find r
katrin [286]

Answer:

R = 4 cm

Step-by-step explanation:

A = pi * r^2

51 = 3.14 r^2

r^2 = 51/3.14

r^2 = 16

r = 4 cm

*Note:- neglect the diameter of the the larger circle

7 0
3 years ago
Read 2 more answers
Point E has a positive y-coordinate.
mars1129 [50]

Answer:

please be more specific in your answer.

Step-by-step explanation:

i know that if it has a positive y coordinate then it would mean it has to be above the x-axis but thats all i can tell you from this.

7 0
3 years ago
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