3 years ago

Need help on this problem

Mathematics

1 answer:

Paul [167]3 years ago

5 0

Answer:

Step-by-step explanation:look it up

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Find the ratio in which the line joining the points (2, 4, 16) and (3, 5, -4) is divided by the plane 2x – 3y+ z+ 6 = 0. Also fi

Nastasia [14]

Answer:

Step-by-step explanation:

let the plane intersects the join of points in the ratio k:1

let (x,y,z) be the point of intersection.

$x=\frac{3k+2}{k+1} \\y=\frac{5k+4}{k+1} \\z=\frac{-4k+16}{k+1} \\\because ~(x,y,z)~lies~on~the~plane.\\2(\frac{3k+2}{k+1} )-3(\frac{5k+4}{k+1} )+\frac{-4k+16}{k+1} +6=0\\multiply~by~k+1\\2(3k+2)-3(5k+4)+(-4k+16)+6(k+1)=0\\6k+4-15k-12-4k+16+6k+6=0\\-7k+14=0\\k=2\\x=\frac{3*2+2}{2+1} =\frac{8}{3} \\y=\frac{5*2+4}{2+1}= \frac{14}{3} \\z=\frac{-4*2+16}{2+1} =\frac{8}{3}$

point of intersection is (8/3,14/3,8/3)

and ratio of division is 2:1

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2 years ago

It costs $50 to join a gym plus $28 per month define the variable

horrorfan [7]

Answer:

Step-by-step explanation:

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2 years ago

Help pleaseee, much appreciated

Vitek1552 [10]

Answer:

smallest triangle BCD

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Step-by-step explanation:

9/x = x/(16 + 9)

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3 years ago

Find the value of 7 + b when b= 15. Help ?

Lisa [10]

7 + b

= 7 + 15

= 22

hope it helps!

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1 year ago

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