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egoroff_w [7]
3 years ago
14

What is 45x5 1/2 + 25 - 2 + 5x 3?

Mathematics
1 answer:
tamaranim1 [39]3 years ago
5 0

Answer:

285.5

Step-by-step explanation:

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Graph the line that represents this equation:y=-2/3x +1
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Answer:

(attached below)

Step-by-step explanation:

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Write the equation of a parabola having the vertex (1, −2) and containing the point (3, 6) in vertex form. Then, rewrite the equ
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PART A

The equation of the parabola in vertex form is given by the formula,

y - k = a {(x - h)}^{2}

where

(h,k)=(1,-2)

is the vertex of the parabola.

We substitute these values to obtain,


y  + 2 = a {(x - 1)}^{2}

The point, (3,6) lies on the parabola.

It must therefore satisfy its equation.


6  + 2 = a {(3 - 1)}^{2}


8= a {(2)}^{2}


8=4a


a = 2
Hence the equation of the parabola in vertex form is


y  + 2 = 2 {(x - 1)}^{2}


PART B

To obtain the equation of the parabola in standard form, we expand the vertex form of the equation.

y  + 2 = 2{(x - 1)}^{2}

This implies that

y + 2 = 2(x - 1)(x - 1)


We expand to obtain,


y + 2 = 2( {x}^{2}  - 2x + 1)


This will give us,


y + 2 = 2 {x}^{2}  - 4x + 2


y =  {x}^{2}  - 4x

This equation is now in the form,

y = a {x}^{2}  + bx + c
where

a=1,b=-4,c=0

This is the standard form
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3 years ago
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3 years ago
3/5 b -2+7b -12 -2/5 b + 14 when you get the answer simplify it and show all work and tell me how you got it
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Answer:

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Step-by-step explanation:

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