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3 years ago

How do you find the area of a rectangle or square??? Do you multiply LxW

Mathematics

1 answer:

Anna007 [38]3 years ago

5 0

Yes. multiply the L (ex 3 ft) and the W (ex. 4 ft) so 3x4 = 12 the area of the square or rectangle is 12 sq ft

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3 years ago

Ingrid gets two - thirds of her essay typed in 30 minutes. The equation 2/3×=30 can be used to find out how long it will take he

emmainna [20.7K]

Answer:

The answer is 45

Step-by-step explanation:

The equation is a straightforward one, we have:

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because we have a fraction on at least one side, we will cross multiply thus:

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3 years ago

I need step by step explanation and answer please

fredd [130]

Answer:

Step-by-step explanation:

Trigonometric identities:

$\sin^{2} (x) + { \cos}^{2} (x) = 1 \\ {\cos}^{2} (x) = 1 - { \sin}^{2} (x) \\ { \sin }^{2} x = 1 - {\cos}^{2} (x) \:$

Replace into the equation

$\frac{ \sqrt{1 - \cos^{2} (x) } }{ \sin(x) } + \frac{ \sqrt{1 - \sin^{2}(x) } }{ \cos(x) } \\ \\ = \frac{ \sqrt{ \sin^{2}(x) } }{ \sin(x) } + \frac{ \sqrt{ \cos^{2}(x) } }{ \cos(x) }$

Remove roots and simply

$= \frac{ \sin(x) }{ \sin(x) } + \frac{ \cos(x) }{ \cos(x) } \\ \\ = 1 + 1 \\ = 2$

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3 years ago