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Anna [14]
2 years ago
10

Okay can you please help me do this

Mathematics
1 answer:
sertanlavr [38]2 years ago
7 0

Answer:

y=3

Step-by-step explanation:

Multiply 9 from both sides to cancel it out.

-27=-y/9

/9      /9

-3=-y

We can't have a negative variable, so we divide -1 from both sides.

-3=-y

/-1  /-1\

3=y

-hope it helps

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Answer:

9/15=3/5

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what is an equation in point-slope form of the line that passes through the points (4, 5) and (-3, -1)???
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What’s is part A?? .....
bixtya [17]

Answer:

A. 3

B. 4

C. 1

D. 2

Step-by-step explanation:

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A. y=x^2 -6x+8

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x_v=\dfrac{-b}{2a}=\dfrac{-(-6)}{2\cdot 1}=3\\ \\y_v=3^2-6\cdot 3+8=9-18+8=-1

The y-intercept is at point

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Since

x^2 -6x+8=x^2-4x-2x+8=x(x-4)-2(x-4)=(x-2)(x-4),

the x-intercepts are at points (2,0) and (4,0)

The leading coefficient is 1 > 0, then the parabola opens upwards.

Hence, the graph of this parabola is 3.

B. y=(x-6)(x+8)

This parabola has two x-intercepts at points (6,0) and (-8,0).

The leading coefficient is 1 > 0, then the parabola opens upwards.

The only possible choice is parabola 4.

C. y=(x-6)^2+8

This parabola has the vertex at point (6,8), opens upwards, therefore does not intersect the x-axis.

The graph of this parabola is 1.

D. y=-(x+8)(x-6)

This parabola has two x-intercepts at points (6,0) and (-8,0).

The leading coefficient is -1 > 0, then the parabola opens downwards.

The only possible choice is parabola 2.

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Write 0.76 as a fraction.
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Answer:

76/99

Step-by-step explanation:

76 ÷ 99 = 0.767676....

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