3 years ago

What does number one mean of letter b

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

6 0

Answer:

M, N, O

Step-by-step explanation:

This line contains the letter "M"

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4 years ago

4) A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is

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Answer:

l=0.1401P\\

w =0.2801P

where P = perimeter

Step-by-step explanation:

Given that a window is in the form of a rectangle surmounted by a semicircle.

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$P= 2l+3.14 (w/2)+w$

Or $P = 2l+2.57w\\l = \frac{P-2.57w}{2}$

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Area = area of rectangle + area of semi circle where rectangle width = diameter of semi circle

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$A=lw +\pi \frac{w^2}{8}\\A=w*\frac{P-2.57w}{2}+0.3925w^2\\2A= Pw-2.57w^2+(0.785w^2)\\2A' = P-5.14w+1.57 w\\2A" =-5.14+1.57$

Hence we get maximum area when i derivative is 0

i.e. $P-5.14w+1.57 w=0\\3.57w =P\\w = \frac{P}{3.57} =0.2801P$

$l = \frac{P-2.57w}{2}\\l = 0.1401P$

Dimensions can be

$l=0.1401P\\w =0.2801P$

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3 years ago

Solve 3x+4y=17<br>5x+4y=27

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(5x+4y)-(3x+4y)=27-17

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An incoming airplane is x miles due north from the control tower at an airport. A second incoming airplane is y miles due east o

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using distance formula:

x = √z^2 - y^2

y = √z^2 - x^2

=> z = √x^2 + y^2

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