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3 years ago

What is the slope of the line x = 4?

Mathematics

2 answers:

Sholpan [36]3 years ago

4 0

Undefined. Because it doesn’t have a slope.

kondor19780726 [428]3 years ago

3 0

Answer: The slope of the line x = 4 is undefined. This is because the line x = 4 is a vertical line.

The x-intercept is (4,0)

Step-by-step explanation:

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y= (1, 4) times x + (15, 4)

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

lisov135 [29]

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.

Perimeter of window =2l+\pid/2+w

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

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

To allow maximum light we must have maximum area

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

$A=lw +\pi \frac{w^2}{8}$

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

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

The test score for a class pf 101 students are computed. What is the percentage of score equal to or grater than the third quart

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Answer:

Step-by-step explanation:

The third quartile is at 75% of total of number of students.

So percentage score great or equal to this is 25%.

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2 years ago

Denominator: x + 8x?

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Answer:

Step-by-step explanation:

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Ainat [17]

Answer:

$\textsf{x=22.5}$

Step-by-step explanation:

$\textsf{According to intersecting tangent - secant theorem,}$

$\textsf{x=1/2[(4x+5)-50]}$

$\textsf{2(x)=4x+5-50}$

$\textsf{2x=4x-45}$

$\textsf{2x-4x=-45}$

$\textsf{-2x=-45}$

$\textsf{x= -45/-2}$

$\textsf{x=22.5}$

$\textsf{OAmalOHopeO}$

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3 years ago