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3 years ago

5

I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would

appreciate it!

1 answer:

Fittoniya [83]3 years ago

5 0

Answer:

1436.01cm3

Step-by-step explanation:

A=4πr2 V=4 3πr3 Solving forV V=A3/2 6π=615.543/2 6·π≈1436.01254cm³

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2 years ago

Find the point of intersection (if any) of the following pairs of lines: a) x – 2y +1=0 2x + 3y – 7 = 0 b) x-2y+11=0 -x+2y-13 =

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Answer:

a) (11/7, 9/7)

b) There's no point of intersection

Step-by-step explanation:

a) x - 2y + 1 = 0

2x + 3y - 7 = 0

To find the point of intersection, we need to solve the system of equations and the result will be the point of intersection (x,y)

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Now we substitute x in the second equation:

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Now we substitute y in our first equation.

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The point of intersection is (11/7, 9/7)

b) x -2y +11 =0

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We are going to follow the same procedure:

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Since this system of equations doesn't have a solution, the system has no point of intersection.

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PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

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The first choice is the correct one.

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