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Snezhnost [94]
3 years ago
9

A paraboloid container is being filled with fluid at the rate of 4.5 cubic feet per minute. At what rate is the level of fluid c

hanging when the depth
is 2.5 feet? The ratio of the radius to the height of the container is 3:7.
"V = 1/2 pir^2h
Mathematics
1 answer:
docker41 [41]3 years ago
7 0

Answer:

2.62 ft./min

Step-by-step explanation:

Just took the test.

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The angles of a triangle are 128, 5x+10 and 9x. What is the value of x?
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Angles in a triangle total 180°

180=128+5x+10+9x
180-128-10=5x+9x
42=14x
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If you are trying to find where he is the answer is -29.7

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Monica’s school band held a car wash to raise money for a trip to a parade in New York City. After washing 125 cars, they made $
nikklg [1K]

The system of linear equations represents the situation is;

x + y = 125

x + y = 1255x + 8y = 775

<h3>Simultaneous equation</h3>

Simultaneous equation is an equation in two unknown values are being solved for at the same time.

let

  • number of quick washes = x
  • number of premium washes = y

x + y = 125

5x + 8y = 775

From equation (1)

x = 125 - y

5x + 8y = 775

5(125 - y) + 8y = 775

625 - 5y + 8y = 775

- 5y + 8y = 775 - 625

3y = 150

y = 150/3

y = 50

  • Substitute y = 50 into

x + y = 125

x + 50 = 125

x = 125 - 50

x = 75

Therefore, the number of quick washes and premium washes Monica’s school band had is 75 and 50 respectively.

Learn more about simultaneous equation:

brainly.com/question/16863577

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3 0
1 year ago
What are the intercepts???
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Answer:

X is intercepted at -7

Y is intercepted at 2

Step-by-step explanation:

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Find the ratio of the students who study French to students who do not study French give your answer in its simplest form
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(2/5) of (2/3) of students = 4/15 of students study French. Then 1-(4/15) = 11/15 of students do not study French. The ratio you want is
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_____
In a math expression "of" means "times".
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3 years ago
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