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Umnica [9.8K]
2 years ago
11

Given the function below, if (x,-4) is an element of the function, what is the value of x?

Mathematics
1 answer:
insens350 [35]2 years ago
4 0

Answer:

f(-4)=8

Step-by-step explanation:

f(-4)=2(-4)+16

      -8+16

f(-4)= 8

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A music store marks up the instruments it sells by 40%. If the store bought a guitar for $35, what will be its store price? If t
Black_prince [1.1K]

Answer:

a. $49

b. $74.28

c. No

Step-by-step explanation:

The computation is shown below:

a. The store price is

= Purchase price + markup

= $35 + $35 × 40%

= $35 + $14

= $49

b. The price paid is

Since there is a markup of 40% and when it is added to 100% of cost so the selling price is 140% of the cost or 1.40 of the cost

Now the price paid is

$104 = 1.40 × cost

So, the cost is

= $104 ÷ 1.40

= $74.28

c. Now the markup is

= $100 - $75

= $25

The markup percentage is

= $25 ÷ $75

= 33.33%

No the store does not markup the price by 40%

3 0
3 years ago
Suppose that a box contains 45 light bulbs, of which 36 are good and the other 9 are defective. Consider randomly selecting thre
Andrew [12]

Answer:

Step-by-step explanation:

Given that a box contains 45 light bulbs, of which 36 are good and the other 9 are defective.

Probability for any one to be defective as of now is \frac{36}{45} =0.80

a) P(E) = 0.80

b) After I draw we have 35 good ones and 9 defective

P(F/E) =\frac{35}{44} \\=0.796

c) P(G/EF)

This is the probability for iii bulb to be good given I and II are goog.

Once I and ii are good we have 43 bulbs with 34 good ones

P(G/EF) =\frac{34}{43} \\=0.7907

5 0
2 years ago
A computer manufacturer built a new facility for assembling computers. There were construction and new equipment costs. The comp
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Answer:

the correct graph of this function is a graph of a line that has a y-intercept that is approximately negative $20 million and an x-intercept that is approximately 2.7 years.

Step-by-step explanation:

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3 years ago
The length of each side of a square increases by 2.5 inches to form a new square with a perimeter of 70 inches. The length of ea
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Check the picture below.

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2 years ago
The diameter of a circle is 7 cm. Find the circumference to the nearest tenth
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Answer:38.5 cm

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3 0
2 years ago
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