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dedylja [7]
9 months ago
10

What is the equation of the line that passes through point(7, -8) and has a slope of zero? A. y =7B. x = 7C. x = -8D. y = -8

Mathematics
1 answer:
Bond [772]9 months ago
6 0

y = -8

y = mx + b, where m is the slope and b is the y intercept

since m = 0, the term mx = 0

since the line passes throug (7, -8) then y = -8

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For the cost function, find the marginal cost at the given production level x. State the units of measurement. (All costs are in
baherus [9]

Answer:

The marginal cost at the given production level is $49.9.

Step-by-step explanation:

The marginal cost function is expressed as the first derivative of the total cost function with respect to quantity (x).

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C(x) = 15000 + 50x + \frac{1000}{x}

So, we need the derivative and then we’ll need to compute the value x = 100 of the derivative.

C'(x)=\frac{d}{dx}\left(15000+50x+\frac{1000}{x}\right)\\\\\mathrm{Apply\:the\:Sum/Difference\:Rule}:\quad \left(f\pm g\right)'=f\:'\pm g'\\\\C'(x)=\frac{d}{dx}\left(15000\right)+\frac{d}{dx}\left(50x\right)+\frac{d}{dx}\left(\frac{1000}{x}\right)\\\\C'(x)=0+50-\frac{1000}{x^2}\\\\C'(x)=50-\frac{1000}{x^2}

When x = 100, the marginal cost is

C'(100)=-\frac{1000}{100^2}+50\\\\C'(100)=\frac{499}{10}=49.9

6 0
2 years ago
Helppleaseplease<br> please
Artist 52 [7]

Answer:

B

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A triangles angles always sum up to 180 degrees. Since you already have 1 angle which is 43 degrees you will do 180-43 which is 137. The only angles that add up to 137 degrees is letter B.

5 0
2 years ago
Please help me asap. I need an answer and full explanation. 1st person to complete that gets Brainliest. Question: Amelia likes
Zielflug [23.3K]

Answer:

22 cards

Step-by-step explanation:

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x=22

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Have a great day

3 0
2 years ago
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marishachu [46]
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Amount paid by Sarah in 12 months = (12 * 25) dollars
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Total amount paid by Sarah = (300 + 100) dollars
                                             = 400 dollars
Excess amount paid as interest by Sarah = (400 - 320) dollars
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Actual yearly rate of interest paid by Sarah = (80/320) * 100 percent
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4 0
3 years ago
Mia has 65 sea shells but How many more sea shells does she need to have 200 sea shells
timama [110]
135 sea shells more

65-200 equals to 135
3 0
2 years ago
Read 2 more answers
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