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3 years ago

9

HELP PLEASEEEEE I suck at mathhh!!!

1 answer:

melisa1 [442]3 years ago

3 0

The answer is d. Look at the equation , there isn’t a line under the > sign, so you don’t need to pick the graph with a colored circle, and then there are 3 left that are not colored. Those are b,c and d. Now, the > sign does to the right ( the pointy part) so your line had to go to the right. Only d is like that. Hope this helps and can you make me brainliest?

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The total cost (in dollars) of producing x food processors is C(x) = 2500 + 50x -0.28.

Darya [45]

Answer:

The exact cost of producing the 21st food processor is $38.52.

The marginal cost to approximate the cost of producing the 21st food processor is $38.24

Step-by-step explanation:

Consider the provided function.

$C(x) = 2500 + 50x -0.28x^2$

(A) Find the exact cost of producing the 21st food processor

The exact cost producing 21st food processor is C(21)-C(20)

Substitute x=21 in above function.

$C(x) = 2500 + 50(21) -0.28(21)^2$

$C(x) = 2500 +1050 -123.48$

$C(x) = 3426.52$

Substitute x=20 in above function.

$C(x) = 2500 + 50(20) -0.28(20)^2$

$C(x) = 2500 +1000-112$

$C(x) = 3388$

The exact cost producing is:

$C(21)-C(20)=3426.52-3388=38.52$

Hence, the exact cost of producing the 21st food processor is $38.52.

Part (B) Use the marginal cost to approximate the cost of producing the 21st food processor,

To find the marginal cost first differentiate the function with respect to x.

$C(x) = 2500 + 50x -0.28x^2$

$C'(x) =50-0.56x$

Now substitute x=21 in above function.

$C'(x) =50-0.56(21)$

$C'(x) =50-11.76$

$C'(x) =38.24$

The marginal cost to approximate the cost of producing the 21st food processor is $38.24

5 0

3 years ago

Is 1/2=1/4 a proportional relationship?

max2010maxim [7]

Answer: No it is not

Hope this helps

5 0

3 years ago

What is the length of a rectangle with with 20 inches it in area 114 in.2

KiRa [710]

Length is 5.7 inches

3 0

4 years ago

Circle O has a circumference of approxim

aev [14]

Answer:

80 ft

Step-by-step explanation:

Circumference is approximately 250 ft

We want to find the diameter.

Circumference of a circle = π × D (D is the diameter)

So πD ≈ 250 ft

D ≈ $\frac{250}{Pi}$ ≈ 79.57747155

Diameter is approximately 80 ft.

6 0

3 years ago

if you had a rectangular sheet cake do you need to cut into 15 pieces how many pieces would have to be on each side to achieve t

STatiana [176]

15 is divisible by 3 and 5.
3 * 5 = 15.
You can cut the cake into 5 pieces along the length, and cut into 3 pieces along the width to get 15 pieces.

8 0

3 years ago