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kherson [118]
3 years ago
10

here will be 57 guests and he wants to make sure everyone gets a slice of cake. He wants to pay as little as possible for the ca

kes and for them to be the same size.
Mathematics
1 answer:
kicyunya [14]3 years ago
3 0
So what would the question be
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A valve in a full 6000 gallon water tank is slowly opening. Water flows out of the tank through the valve. The flow rate in gall
Wittaler [7]
The volume of the gallon is 6000 gallon
the rate of water flow per min is f(t)=300t^2
a] amount of water that flowed in the first 7 minutes=7/60 hours will be:
f(7)=300(7/60)^2
solving the above we get
f(7)=7/12 gallons

b] The time taken for the tank to be empty will be as follows:
amount of water that will flow out for the tank to be empty will be 6000 gallons
thus,
6000=300t^2
this can be simplified to
20=t^2
t^2-20=0
solving this we get:
t=-2√5 or 2√5
the time taken for the tank to be empty will be t=2√5 hours=5.4721 hours



8 0
3 years ago
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Find the value of the csc 40° using your calculator. (I've been having a hard time with this, so it'd be helpful if anyone could
SCORPION-xisa [38]
<span><u><em>The correct answer is: </em></u>
C 1.556.

<u><em>Explanation:</em></u>
This can be found by locating the csc button on your calculator. Typically it is located as the second option below the sin button as it is the inverse function.
If you cannot locate the csc button on your calculator, you can also use </span>\frac{1}{sin(40)}<span> as csc is its inverse.

Also, it is helpful to note that some calculators have both a degrees and a radians mode for trigonometric functions. You will need to make sure that you are in degrees in order to use a calculator to solve this. </span>
7 0
3 years ago
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9e-7=7e-11<br><br> Whats does E equal?
SSSSS [86.1K]

Answer:

-2

Step-by-step explanation:

3 0
3 years ago
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What is the answer for 5-3x=-7
MAXImum [283]

Answer:

x=4

Step-by-step explanation:

5-3x=-7

1) you subtract the 5 from both sides

-3x=-12

2) then you divide both sides by -3

x=4

3 0
3 years ago
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Please help me with this math problem
Leto [7]

Answer:

the MEAN for class a is 72.6

the MEAN for class b is 84.0

if you take these means and compare them, you can see that on average, class B performed better.

the MEDIAN for class a is 72

the MEDIAN for class b is 85

Step-by-step explanation:

4 0
2 years ago
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