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weqwewe [10]
2 years ago
8

Please help fast fast fast

Mathematics
1 answer:
MaRussiya [10]2 years ago
3 0

Answer:

the answer is

the \: answer \: is \: b

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What is the equation of the line that is perpendicular to the line through (1,-4) and (-2,2) and passes through the x-intercept
ss7ja [257]

Answer:

y=-\frac{1}{2}x+\frac{3}{2}

Step-by-step explanation:

First, calculate the slope of the line that is perpendicular to the equation of line we are asked to find

m=(y2-y1)/(x2-x1)

  =(2-(-4))/(-2-1)

  =6/-3

  =-2

in this equation the slope is 2, and to find the first equation, use y=mx+b

use the point (1, -4) to find b

-4=(2)(1)+b

-4=2+b

b=-6

the first equation of the line is y=2x-6

to find the x intercept of that line substitute 0 for y

0=2x-6

2x=6

x=3

the slope of a line perpendicular to this would be the opposite reciprocal of the slope which would be equal to -1/2

for the second equation of the line to pass thorugh the x-intercept of the first line, it must pass through (3, 0), so substitute and solve for b

y=mx+b

0=(-1/2)(3)+b

b=3/2

thus the equation of the line that is perpendicular to the line through (1,-4) and (-2, 2) and passes through the x intercept of that line is y=-\frac{1}{2}x+3/2

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2 years ago
When you find the volume of a sphere, what are you finding out? explain
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Volume of a sphere is all of the volume enclosed within the sphere.

4/3(pi)r^3

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Determine the average speed of the monorail, in miles per hour, over each segment of the route. Round each speed to the nearest
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Answer:

show everything

Step-by-step explanation:

copy and paste all of all of the problem

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I am unsure but i think the answer is c or a but let me know if i'm right or wrong
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Answer:

a. $34.24

b. $33

Step-by-step explanation:

Hope this helps

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3 years ago
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