2 years ago

Solve the following equation for y: −8x+ 4y = 20

Mathematics

1 answer:

MrRissso [65]2 years ago

8 0

Answer:

y=5+2x

Normally I would explain it, but im in a bit of a hurry today. I apologize for the inconvenience!

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Answer:

b. (x-3)(x+2)

Step-by-step explanation:

y=x^2-x-6

y=x^2-3x+2x-6

=x(x-3)+2(x-3)

=(x-3)(x+2)

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3 years ago

Select all equations that have two solutions. a x^2=16 b 4x^2=0 c x^2=-16 d 3x+2=14 e x^2-1=24 f (x+8)(x-8)=0

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a )

${x}^{2} = 16$

$x = ± \: 4$

Two solutions.

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b )

$4 {x}^{2} = 0$

$x = 0$

One solution .

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c )

${x}^{2} = - 16$

$No \: \: solution.$

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d )

$3x + 2 = 14$

$x = 4$

One solution.

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e )

${x}^{2} - 1 = 24$

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Two solutions.

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f )

$(x + 8)(x - 8) = 0$

$x = - 8 \: \: or \: \: x = 8$

Two solutions .

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Step-by-step explanation:

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Plases help Determine the number of solutions of each system of equations.

koban [17]

Answer:

Step-by-step explanation:

this is the same equation, the system has infinitely many solutions

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2 years ago

Segement JK joins J (-2,4) and K (3,-1). Which point is four times as far from K as it is from J?

ser-zykov [4K]

Answer:

P( - 1, 3)

Step-by-step explanation:

J(- 2, 4), P(x, y), K(3, -1)

KP = 4JP and KP + JP = JK

5JP = JK

JP = $\frac{1}{5}$ JK

JK = 5√2

JP = √2

KP = 4√2

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32 = (x - 3)² + (y + 1)²

P( - 1, 3)

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2 years ago