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3 years ago

Solve: 9(x^2+1/x^2) -9(x+1/x)-52=0

Mathematics

1 answer:

julia-pushkina [17]3 years ago

4 0

Answer

x1 = −1.768

Step-by-step explanation:

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Amy and Fraser walk inside a circular lawn. Point O is the center of the lawn, as shown below: A circle is drawn. The center of

Assoli18 [71]

Answer:

Both Amy and Fraser walk distances equal to the radius of the lawn.

Step-by-step explanation:

The radius of a circle is a line segment from the center to the outside edge (circumference).

Amy walks from O, the center, to A, along the outside edge, using segment OA. This is a radius of the circle.

Fraser walks from O, the center, to B, along the outside edge, using segment OB. This is a radius of the circle.

Thus the correct answer is that both Amy and Fraser walk distances equal to the radius of the lawn.

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4 years ago

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The average cost per unit for the production of a certain brand of DVD is given by C=\frac{500+60c+0.01x^2}{x} , where x is the

Ganezh [65]

Answer:

A: for 500: 66; for 60: 68.9; for 100: 66

B: no

Step-by-step explanation:

We assume your average cost function is ...

$\overline{C}=\dfrac{0.01x^2+60x+500}{x}$

A. The overline over the C indicates it is an average value.

Evaluating the cost function at the different production levels, we find the average cost per unit to be ...

500 units

c = ((0.01·500)+60)500 +500)/500 = 65 +1 = 66

60 units

c = ((0.01·60 +60)·60 +500)/60 = 60.6 +500/60 ≈ 68.93

100 units

c = ((0.01·100 +60)·100 +500)/100 = 61 +5 = 66

B. Dividing out the fraction, we find that the cost per unit is ...

0.01x +60 +500/x

As x gets large, this approaches the linear function c = 0.01x +60. This increases as the number of units produced rises. (The minimum average cost is at a production level of about 224 units.)

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4 years ago

Which expression is equivalent to the square root of 1/8

irina1246 [14]

When you say "which," it sounds like it should be multiple choice. Anyways, here's the simplified form of $\sqrt{\frac{1}8}}$

$\sqrt{\frac{1}8}} = \frac{\sqrt{1}}{\sqrt{8}} = \frac{1}{\sqrt{8}} * \frac{\sqrt{8}}{\sqrt{8}}=\boxed{\frac{\sqrt{8}}8}$

(When simplifying fractions, you should never have a square root on the bottom. Multiply by the square root to cancel it out)

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4 years ago

Please help me with the question

pav-90 [236]

Answer:

Step-by-step explanation:

If you plug in the x and y into both of those equations, you can see that only A would make the equation true.

Hope This Helps! :) Please mark as brainliest if you can!

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2 years ago

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A computer chip manufacturer made 290,000 chips last week. If 4% of them were defective, how many defective chips were made?

Black_prince [1.1K]

Answer:

11,600

Step-by-step explanation:

What is 4% of 290,000?

Y is 4% of 290,000

Equation: Y = P% * X

Solving our equation for Y

Y = P% * X

Y = 4% * 290,000

Converting percent to decimal:

p = 4%/100 = 0.04

Y = 0.04 * 290,000

Y = 11,600

8 0

3 years ago

Solve: 9(x^2+1/x^2) -9(x+1/x)-52=0​

Solve: 9(x^2+1/x^2) -9(x+1/x)-52=0