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3 years ago

How many pieces 8 7/8 in long can be cut from a piece of 36 ft stock ? allow 3/16 in kerf

Mathematics

1 answer:

Taya2010 [7]3 years ago

7 0

36÷ 8 7/8 = 4 4/71 or (Decimal: 4.056338)

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What is the value of the underlined digit in 234, 500, 450

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The point (- square-root 2/2, square-root2/2 is the point at which the terminal ray of angle theta intersects the unit circle. W

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Since the x coordinate is negative and y coordinate is positive so the point must be lies in second quadrant.

The distance of the point from the origin is,

$r=\sqrt{(\frac{-\sqrt{2}} {2}-0)^2+(\frac{\sqrt{2}} {2}-0)^2}$

$r=\sqrt{ \frac{2}{4}+\frac{2}{4}}$

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The given point is in the form of (a,b). So we get,

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$b=\frac{\sqrt{2}} {2}$

The formula for cosine,

$\cos \theta =\frac{a}{r}$

$\cos \theta =\frac{\frac{-\sqrt{2}} {2}}{1}}$

$\cos \theta =\frac{-\sqrt{2}} {2}}$

The formula for cotangent,

$\cot \theta =\frac{a}{b}$

$\cos \theta=\frac{\frac{-\sqrt{2}} {2}}{\frac{\sqrt{2}} {2}}$

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