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Novosadov [1.4K]
3 years ago
12

Help please, I’m not sure

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0
YOUR ANSWER IS A
HOPE THIS HELPS
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there are 20 students in the group , 15 from them are athletes. it is taken for competition 10 students. find the probability th
Allisa [31]

Answer:

Step-by-step explanation: The question is a bit unclear?

5 0
3 years ago
You don’t need to tell me the answer, but could you tell me the formula on how to get the answer ?
steposvetlana [31]

Formula used: cos(x) = \frac{adjacent}{hypotenuse}

Hope this helped!

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3 0
3 years ago
The derived demand curve for a product component will be more inelastic
rusak2 [61]

Answer:

B. the more inelastic is the demand for the final product.

Explanation:

Inelastic demand occurs when demand rises by a lower percentage as compared to the percentage of the price drop.

Take for instance, if price drops by 10% and then demand only rises by 4%.

Now, the derived demand curve for a product component will be more inelastic when there's more rises by lower percentages of the final product than price drop. The more inelastic the demand for a product is, the more inelastic the demand derive curve will be.

7 0
3 years ago
A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 4 ft/s along
mina [271]

Answer:

The tip of the man shadow moves at the rate of \frac{20}{3} ft.sec

Step-by-step explanation:

Let's draw a figure that describes the given situation.

Let "x" be the distance between the man and the pole and "y" be distance between the pole and man's shadows tip point.

Here it forms two similar triangles.

Let's find the distance "y" using proportion.

From the figure, we can form a proportion.

\frac{y - x}{y} = \frac{6}{15}

Cross multiplying, we get

15(y -x) = 6y

15y - 15x = 6y

15y - 6y = 15x

9y = 15x

y = \frac{15x}{9\\} y = \frac{5x}{3}

We need to find rate of change of the shadow. So we need to differentiate y with respect to the time (t).

\frac{dy}{t} = \frac{5}{3} \frac{dx}{dt} ----(1)

We are given \frac{dx}{dt} = 4 ft/sec. Plug in the equation (1), we get

\frac{dy}{dt} = \frac{5}{3} *4 ft/sect\\= \frac{20}{3} ft/sec

Here the distance between the man and the pole 45 ft does not need because we asked to find the how fast the shadow of the man moves.

7 0
3 years ago
After prime planting season was over, a horticulturist sold lilac bushes for $15.00. If the original price was $39.00, what is t
hoa [83]
Find what percent of $39.00 the sale price was.
=> 15/39*100=38.4%
now subtract from 100% to get the mark down percentage.
100-38.4=61.6
Final answer:
Marked down 61.6%
Hope I helped :)
4 0
3 years ago
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