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vekshin1
3 years ago
11

(08.05 lc) of a semicircle was rotated about the y-axis, like the one shown below, what would be the resulting three-dimensional

shape
Mathematics
2 answers:
lesantik [10]3 years ago
4 0

Answer:

A sphere is the correct answer!

I hope this helps!!

Step-by-step explanation:

PIT_PIT [208]3 years ago
3 0
It would be a sphere

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1) Graph the following lines and using the graph determine several values of x for which the graph is positive (negative):
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1) y=-0.5x-2


The graph of the above equation is attached in the attachment below.  

For all the values from negative infinity to -4, the function is positive.  

X ∈ (-∞,-4]


2) y=-1.5x+3


To find the x- intercept, plug y =0  

0=-1.5x+3


1.5x=3


x=2


x intercept = (2,0)


To find the y- intercept, plug x=0  

y=-1.5(0)+3


y=3


Y- intercept = ( 0,3)


3) y=13-x


Y- intercept = (0,13)


x- intercept = (13,0)


Area of triangle = \frac{bh}{2}


Area of triangle = \frac{13\times13}{2}


Area = \frac{169}{2} sq unit.


4) The graphs of y=-2x+7 and y=0.5x-5.5 is attached in the attachment below.  

The intersection point is ( 5,-3)


5) A = (-3,0)


B = (4,5)


C = (0,-4)


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Slope intercept of line y=mx+b


Where, m is the slope and b is the y- intercept.  

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0=\frac{5(-3)}{7} +b

b=\frac{15}{7}


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Slope of BC = \frac{-4-5}{0-4} =\frac{9}{4}


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-4=0+b


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Slope of line AC = \frac{-4-0}{0--3} =\frac{-4}{3}


Equation of line AC = y=\frac{-4x}{3} -4


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Virty [35]

Answer:

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Step-by-step explanation:

for c, 180-70=110

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Answer:

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Step-by-step explanation:

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