2 years ago

WILL MARK BRAINLIST Complete the following statement. Like frequency tables, bar graphs provide a visual display of blank

Mathematics

1 answer:

nika2105 [10]2 years ago

6 0

Answer: The data must to be quantitative

Step-by-step explanation:

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Solve x-3y+2z=1 -x+4y-4z=1 5x-y+6z=9

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Answer:

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Step-by-step explanation:

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2 years ago

You have a wire that is 38 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The o

Drupady [299]

Answer:16.71 cm

Step-by-step explanation:

Given

Length of wire L=38 cm

One piece is bent in the form of square and another in the form of circle

let x be the length of circle

therefore length of square side $\frac{38-x}{4}$

A=total area of square and circle

radius of circle $r=\frac{x}{2\pi }$

area of circle $A_c=\pi r^2=\pi \times (\frac{x}{2\pi })^2$

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$A=\pi \times (\frac{x}{2\pi })^2+(\frac{38-x}{4})^2$

To get the minimum value of A we get

$\frac{\mathrm{d} A}{\mathrm{d} x}=\frac{2x}{4\pi }-\frac{2(38-x)}{16}$

$\frac{\mathrm{d} A}{\mathrm{d} x}=0$

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Therefore circumference of circle

$x=\frac{38\pi }{4+\pi }=\frac{119.396}{7.142}=16.717 cm$

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2 years ago