3 years ago

(-4) X(-6) what’s the answer

Mathematics

1 answer:

Setler [38]3 years ago

3 0

Answer:

its 24

Step-by-step explanation:

because negative times negative is positive

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The focal length F of a lens made by combining two lenses of focal length U and V is given I/F=I/U+I/V

jolli1 [7]

Answer:

a). $V=\frac{U.F}{U-F}$

b). V = 15 units

Step-by-step explanation:

Focal length F of a lens made by combining two lenses of different focal lengths U and V will be,

$\frac{1}{F}=\frac{1}{U}+\frac{1}{V}$

A). By solving the given formula,

$\frac{1}{V}=\frac{1}{F}-\frac{1}{U}$

$\frac{1}{V}=\frac{U-F}{U.F}$

$V=\frac{U.F}{U-F}$

B). If F = 6 and U = 10 then we have to find the value of V.

By substituting the given values in the formula,

$V=\frac{6\times 10}{10-6}$

$V=\frac{60}{4}$

V = 15 units

Therefore, focal length (V) of the lens = 15 units

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3 years ago

Find the volume of a cylinder with a diameter of 10 inches and a height that is

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Answer:

1178.1

Step-by-step explanation:

pi*radius^2*height

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4 years ago

What are irrational numbers

eduard

In mathematics, the irrational numbers are all the real numbers which are not rational numbers, the latter being the numbers constructed from ratios (or fractions) of integers.

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By selling a watch to Rahim, Ravi gainee Rs 50. Apurva bought the same watch from Rahim who sold at a loss of Rs 20. If Apurva p

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Answer:B is the answer

Step-by-step explanation:

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