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marin [14]
3 years ago
6

a hose fills a hot tub at a rate of 3.14 gallons per minute. How many hours will it take to fill a 329 gallon tub?

Mathematics
1 answer:
ankoles [38]3 years ago
5 0
There are 60 minutes in an hour, so to find the hourly rate, you would multiply 3.14 by 60, which gives us 188.4. If the rate is 188.4 gallons an hour, then we can divide 329 by 188.4. The full number would be 1.7462845011, but you can simplify that. If you need the minimum number of precise hours needed, then it would be 2. If you are allowed a small amount of error through simplifying your decimals, then you could say about 1.7.
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4c^2-8c-1=0 complete the square round to nearest hundredth
olga55 [171]
Move constant to other side
add 1
4c^2-8c=1
divide by 4 to make leading coeficient 1
c^2-2c=1/4
take 1/2 of linear coeficient and square it
-2/2=-1, (-1)^2=1
add that to both sides
c^2-2c+1=1/4+1
factor perfect squaer and add
(c-1)^2=5/4
square root both sides
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add 1
c=1+/-(√5)/2

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3 years ago
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Alex17521 [72]

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Step-by-step explanation:

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2 years ago
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liraira [26]
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6 0
3 years ago
Read 2 more answers
Find the value of x in the parallelogram
lord [1]

Answer:

72 = x

Step-by-step explanation

154 is one of the degrees for that angle. And I seen 82 for the other one.

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8 0
2 years ago
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Rashid [163]

Answer:

  C.  {-1, 5, 8}

Step-by-step explanation:

Use each of the domain values in the function to see what the corresponding range value is.

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The range is the set of numbers {-1, 5, 8}.

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<em>Additional comment</em>

The values in a set are generally listed lowest to highest. The coefficient of x in the equation for f(x) is negative, meaning the lowest range value will correspond to the highest domain value. If you start by finding f(2) = -1, you immediately eliminate all answer choices except B and C.

Those choices differ only in the middle value, so you can tell which is correct by evaluating f(x) for the middle domain value: f(0) = 5. Only one answer choice has both -1 and 5 in the set.

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2 years ago
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