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Ann [662]
3 years ago
12

Make v the subject formulae

Mathematics
2 answers:
Monica [59]3 years ago
6 0
1/u = 1/f -1/v
1/v = 1/u + 1/f
Ilia_Sergeevich [38]3 years ago
4 0

Answer:

v = uf/ u - f

Step-by-step explanation:

multiply the original equation by the LCM that is ufv . bring all terms having a v attached to one side while all terms with no v attached are sent to the other side. factories v out and divide both sides by th term in the bracket.

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How many gallons of water will be in the fish tank after 3 minutes? how can you explain your answer
Lera25 [3.4K]

The question is incomplete, the complete question is;

If in 0.5 min the tank gets 0.8 gallons of the water then

how many gallons will be in 1 min ?

how many gallons will be in 3 min?

and how long it takes for 40 gallons?

Answer:

1.6 gallons

4.8 gallons

25 mins

Step-by-step explanation:

This question has to do with proportion.

If it takes 0.5 mins for the tank to get 0.8 gallons

in 1 minute the tank will get 0.8 * 1/0.5 = 1.6 gallons

In 3 minutes the tank will get 3 * 1.6 gallons = 4.8 gallons

if it takes 1 min to get 1.6 gallons

it will take x mins to get 40 gallons

x = 1 * 40/1.6 = 25 mins

5 0
3 years ago
What is the slope of a line that is perpendicular to the line shown.
sertanlavr [38]

Answer:

3/4

Step-by-step explanation:

First of all, we need to calculate the slope of the line shown. This can be computed as:

m=\frac{\Delta y}{\Delta x}

where

\Delta y = y_2-y_1 is the increment along the y-direction

\Delta x = x_2 - x_1 is the increment along the x-direction

We can choose the following two points to calculate the slope of the line shown:

(-3,2) and (0,-2)

And so, the slope of the line shown is

m=\frac{-2-(2)}{0-(-3)}=-\frac{4}{3}

Two lines are said to be perpendicular if the slope of the first line is the negative reciprocal of the slope of the second line:

m_2 = -\frac{1}{m_1}

Using m_1 = -\frac{4}{3}, we find that a line perpendicular to the line shown should have a slope of

m_2 = -\frac{1}{-4/3}=3/4

5 0
3 years ago
Dividing by 28 is the inverse of?
Fantom [35]

How do you reverse division? You multiply. So, the answer is multiplying by 28.

6 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST 5 STARS AND A THANKS DUE IN 1 HOUR AND A HALF!!
Hunter-Best [27]

Answer: 2.3 / -3

Step-by-step explanation: If you want me to to explain it, just ask!

8 0
2 years ago
Read 2 more answers
Please please help me with this ​
iris [78.8K]

Answer:

angle FQE= Minor sector

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3 years ago
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