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3 years ago

48/42 = 16/14 a proportional b non-proportional

Mathematics

1 answer:

lions [1.4K]3 years ago

5 0

Answer:

proportional

Step-by-step explanation:

proportional

48/3 = 16

42/3 = 14

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Answer:

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2 years ago

A. Find three rational numbers between 1/4 and 0.25 repeating

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2 years ago

(Sketch the graph x^2-7x+12=0

Nonamiya [84]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$x^{2} -7x+12=0$

This is a vertical parabola open upward (because the leading coefficient is positive)

The vertex is a minimum

step 1

Find the vertex of the quadratic equation

Convert the equation in vertex form

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$(x^{2} -7x+3.5^2)+12-3.5^2=0$

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$(x^{2} -7x+12.25)-0.25=0$

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$(x-3.5)^{2}-0.25=0$

The vertex is the point (3.5,0.25)

step 2

Find the x-intercepts

The x-intercepts are the values of x when the value of the function is equal to zero

we have

$(x-3.5)^{2}-0.25=0$

solve for x

$(x-3.5)^{2}=0.25$

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$(x-3.5)=\pm0.50$

$x=3.5\pm0.50$

$x=3.5+0.50=4$

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therefore

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step 3

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$y=x^{2} -7x+12$

For x=0

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The y-intercept is the point (0,12)

step 4

Graph the quadratic equation

we have

The vertex (3.5,0.25)

The x-intercepts (3,0) and (4,0)

The y-intercept (0,12)

using a graphing tool

Plot the points and draw the figure

The graph in the attached figure

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3 years ago

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likoan [24]

Answer:

Step-by-step explanation:

We make a proportion and solve it:

$\frac{x + 18}{x} = \frac{28}{20}$

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1 year ago

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beks73 [17]

Answer:

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