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kupik [55]
3 years ago
12

1 / f = 1 / a + 1 / b

Mathematics
1 answer:
Sphinxa [80]3 years ago
6 0

That equation can represent the relationship among the image distance,
object distance, and focal length of a lens. 

It could describe the effective resistance of two resistors in parallel, the
effective inductance of two coils in parallel, or the effective capacitance
of two capacitors in series. 

Thanks for sharing it.  Now, did you have a question to ask ?

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3y-6 divided by 9 = 4-2 divided by -3
sweet [91]

Answer:

y = 16/9

Step-by-step explanation:

Assuming "y" is a variable

3y - 6/9 = 4 - 2/-3

3y - 2/3 =14/3

3y - 16/3 = 0

1/3 (9y - 2) = 14/3

ANSWER = y : 16/9

4 0
3 years ago
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HACTEHA [7]
15. The answer that best fits the question would be the "First" option. the ( and ) are just things to say do the inner work first, then multiply.

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3 years ago
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Answer:

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3 years ago
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3 years ago
Shelby made $200 from selling candy bars. Large, x, candy bars sell for $4 each and smaller, y, candy bars sell for $2 each. Wri
babymother [125]

Answer:

The Equation is

4x+2y= 200

Then total number of candy bars is

X+Y

Step-by-step explanation:

Shelby made $200 from selling x at $4 each and y at $2 each.

Let's have in mind that x is the number of large candy bars

And y is the number of small candy bars

The equation is simple

The amount it was sold is going to be the coefficient of the numbers we don't Know...

So

Equation is

4x+2y= 200

Then total number of candy bars is

X+Y

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3 years ago
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