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Shtirlitz [24]
3 years ago
6

8,520 gallons of water begins to drain at a rate of 12 gallons per minute. Which equation can be used to find the number of minu

tes, m, it will take for the pool to be half full?
Mathematics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

The time taken to drain water to be half full is 5 hours 55 min .

Step-by-step explanation:

Given as :

The total quantity of water pool = 8520 gallons

The rate of water drain = 12 gallons per min

The time taken to drain water to be half full = t min

<u>Now, According to question</u>

Time of water drain = \dfrac{\textrm total quantity of water in pool}{\textrm rate of water drain}

Or, time = \dfrac{\textrm 8520 gallons}{\textrm 12 gallons per min}

Or, time = 710 minutes

So, The time taken to full empty the pool = 710 minutes

Again, time taken to ran water to half full = \dfrac{710}{2}

Or, t = 355 minutes

So, time taken to drain water to be half full = t = 355 min = 5 hours 55 minutes

Hence, The time taken to drain water to be half full is 5 hours 55 min . Answer

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well, about A and D, I just plugged the values on the slope formula of

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for D the values are -2.25 and 8.0, so no dice on that one.

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for C, well, the slope if L(x) is 8, since it's in slope-intercept form, the derivative of g(x) is g'(x) = 3x² - 4, and thus g'(0) = -4, so no dice.

for E, do they intercept at (2,1)?  well, come on now, L(x) is a tangent line to g(x), so that's a must for a tangent. \textit{\huge \checkmark}

for F, we know the slope of the line L(x) is 8, is g'(2) = 8?  let's check

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

We are given the following in the question:

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