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2 years ago

Y-1=-2(x+3) in standard form

Mathematics

1 answer:

romanna [79]2 years ago

4 0

Answer:

2x + y + 5 = 0

Step-by-step explanation:

y − 1 = -2 (x + 3)

y − 1 = -2x − 6

2x + y + 5 = 0

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Answer:

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2 years ago

For which positive integer values of $k$ does $kx^2+20x+k=0$ have rational solutions? Express your answers separated by commas a

Musya8 [376]

Answer:

-10,10

Step-by-step explanation:

The given quadratic equation is

$k {x}^{2} + 20x + k = 0$

The discriminant of this equation is given by;

$D = {b}^{2} - 4ac$

where a=k, b=20, c=k

For rational solutions, the discriminant must be zero.

${20}^{2} - 4 \times k \times k = 0$

Simplify to get:

$400 - 4 {k}^{2} = 0$

This implies that:

$400 = 4 {k}^{2}$

$100 = {k}^{2}$

Take square root to get:

$k = \pm\sqrt{100}$

$k = \pm10$

$k = - 10 \: or \: k = 10$

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2 years ago

Why is 4/0 a irrational number

Arte-miy333 [17]

Answer:

In the question 4/0, the denominator is zero so it is not a rational number.

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2 years ago

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Question 6 of 10

Verizon [17]

Answer:

True.

Step-by-step explanation:

We have to tell about the statement true or false

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The SSS congruency rule states that if all three sides of one triangle are equal to corresponding three sides of another triangle, then the triangles are congruent.

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Because the definition of a congruent triangle is a triangle with every side of same length.

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2 years ago

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AlekseyPX

Answer: 2

Step-by-step explanation:

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1 year ago

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