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yarga [219]
2 years ago
6

PLEASE HELP MATH QUESTION

Mathematics
1 answer:
Sholpan [36]2 years ago
8 0

Answer:

c is the answer

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If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 40 minutes, then Torricelli's Law gives the v
pochemuha

Answer:

V'(t) = -250(1 - \frac{1}{40}t)

If we know the time, we can plug in the value for "t" in the above derivative and find how much water drained for the given point of t.

Step-by-step explanation:

Given:

V = 5000(1 - \frac{1}{40}t )^2  , where 0≤t≤40.

Here we have to find the derivative with respect to "t"

We have to use the chain rule to find the derivative.

V'(t) = 2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )

V'(t) = 2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )

When we simplify the above, we get

V'(t) = -250(1 - \frac{1}{40}t)

If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

4 0
3 years ago
Write the phrase as an expression. Then evaluate when x=5. The sum of a number x and 4, all divided by 3
frozen [14]
Sum of a number, x and 4 all divided by 3

sum of x and 4 means x+4
all divided by 3
\frac{x+4}{3}
evaluate for x=5

\frac{5+4}{3}=
\frac{9}{3}=
3

it's 3
3 0
3 years ago
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C)<br> What is 15 1/2% to a fraction
Nata [24]

Answer:

31/2

Step-by-step explanation:

6 0
2 years ago
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A marker is 0.13 m long. What is the length in milliliters
yanalaym [24]

For this case we have:

Note:<em> Milliliter is a unit of volume. It is not possible to convert distance units into volume units. </em>

We must convert the length 0.13 meters to millimeters.

By definition, 1 meter equals 1000 millimeters. That is to say:

1m = 1000mm

Then, applying the rule of three we have:

1m ------------> 1000mm

0.13m --------> x

Where x represents the length of the marker in millimeters.

Resolving:

x = \frac {(0.13 * 1000)} {1}

x = \frac {130} {1}\\x = 130

Thus, the marker measures 130 millimeters long

Answer:

130 millimeters


4 0
3 years ago
Fiona is trying to prove that a pair of expressions are equivalent by using substitution. Which pair of expressions has the same
katen-ka-za [31]

Answer:

the answer is A i finished that test now im on another test and timed sorry for no explanation

Step-by-step explanation:

A

7 0
3 years ago
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