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2 years ago

7

Write 54 + 63 as the product of the GCF of 54 and 63 and another sum.

1 answer:

photoshop1234 [79]2 years ago

5 0

Answer:

9(6+7)

Step-by-step explanation:

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Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function: y=4x^2-8x-3

In-s [12.5K]

D. x= -1; vertex: (-1,-7)

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3 years ago

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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3 years ago

Triss [41]

The answer is A. Subtract the five on both sides and you end up with A :)

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3 years ago