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There are seven boys and five girls in a class. The teacher randomly selects three different students to answer questions. The f

Aleks [24]

The probability of picking one girl would be $\frac{5}{12}$ . That is because there are 5 girls out of the 12 students, and the probability of an event occuring is: $\frac{\text{# of things you want}}{\text{# of things are possible}}$ .

Using that same logic, the next student should be easier. We reduced the student population by 1, so we have 11 possible ways it can happen now instead of 12, so that gives us: $\frac{7}{11}$ , for the probability of picking a boy as the second pick.

And lastly, using the same logic shown above, the probability of picking a girl on the third pick would be: $\frac{4}{10}$ .

We are not done, though. We have the separate probabilities, but now we have to multiply then together to figure out the probability of this exact event happening:

$\frac{5}{12}*\frac{7}{11}*\frac{4}{10}=\frac{140}{1320}$

Which when reduced is:

$\frac{7}{66}$

4 0

3 years ago

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Tony and Tiffany collect semi-precious stones. At the Rockhound Hut, Tiffany paid $32 for 7 pounds of snowflake obsidian. At The

ivann1987 [24]

Tony got the better deal

5 0

3 years ago

What is the range of the function on the graph?

zysi [14]

Answer:

Picture a simple scene with a person standing before a landscape. If you photograph them from your eye level, the photograph looks exactly like what a passerby would see with their own eyes as they walk past you, the photographer, capturing an image of your friend. Now, this photograph can be fine—depending on the execution—but think about how you can change the composition by altering your viewpoint.

You can change your elevation. Kneel down and take a photo. Or, hold the camera above your head and shoot down on your subject. Move right. Move left. Go aside your subject or behind them. Get closer. Get further away. Roll diagonally right or left. Notice how the background shifts. Notice how things are added to or eliminated from the foreground. Most importantly, notice how the photograph you capture is no longer something that a casual passerby would see.

Subtle changes in viewpoint can add a deeper meaning or feeling to an image. When is the last time you saw a photograph of the President of the United States seated behind the Resolute desk in the Oval Office, taken from above his or her head? By shooting lower, the photographer emphasizes an iconic vantage point, signifying the power of the office. You will be hard pressed to find a photograph of the Oval Office where the camera is positioned higher than the President. On the contrary, if you were to photograph a young student being scolded at his desk, you would likely shoot the image from a higher viewpoint—from the vantage point of the dean or principal about to assign punishment—or you would chose the lower perspective from the student’s point of view with the towering power figure looming overhead.

Changing your viewpoint is a photographer’s great advantage. We see the world from eye level—be it walking around the city, driving down a country road while seated in a car, or bicycling through a village—and that level is relatively the same for all adults. The photographer, however, can give us a child’s eye view of a scene, a bird’s eye view, or even a viewpoint that is literally unique to the camera, as the human eye cannot physically reach the position. Use this freedom to your aesthetic advantage and make images from creative viewpoints.

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7 0

3 years ago

Finding lengths. Write similarity statements for three triangles in the diagram. then find the given length. Find HF

SOVA2 [1]

Answer:

HF = 15??

Step-by-step explanation:

i think the question is incorrect cause there's no solution, I've been struggling help u answer the question for 10 minute but... anyway please refer to the pic

4 0

2 years ago

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Profit is always calculated as revenue minus expenses. If a company’s expenses were $10 million, write an equation that expresse

ivann1987 [24]

The equation that expresses profit, P, (in millions of dollars) in terms of revenue, R, (in millions of dollars) is P = R - 10

The profit is $15 million when revenue is $25 million

Step-by-step explanation:

The formula of the profit is P = R - E, where

R is the revenue
E is the expenses

If a company’s expenses were $10 million, wee need to write an equation that expresses profit, P, (in millions of dollars) in terms of revenue, R, (in millions of dollars) and then find the profit when revenue is $25 million

∵ P is the profit in millions of dollars

∵ R is the revenue in millions of dollars

∵ The expenses E were $10 million

∵ Profit = Revenue - Expenses

∴ P = R - 10

The equation that expresses profit, P, (in millions of dollars) in terms of revenue, R, (in millions of dollars) is P = R - 10

∵ The revenue R = $25 million

∵ P = R - 10

- Substitute the value of R in the equation

∴ P = 25 - 10

∴ P = 15

∴ The profit is $15 million

The profit is $15 million when revenue is $25 million

Learn more:

You can earn more about the word problems in brainly.com/question/10557938

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8 0

3 years ago