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2 years ago

E (0, 4) and F (4, 3)

Mathematics

2 answers:

Alika [10]2 years ago

8 0

Answer: Good morning, to answer your question

The midpoint is (2 7/2)

Step-by-step explanation:

Midpoint is calculated using formula x1/2 plus x2/2 plus y1/2 plus y2/2

0 plus 4 over 2 = 4/2

4 plus 3 over 2 is 7/2

Add 7/2 plus 4/2

4/2 plus 7/2 is = 2 7/2

You can turn it into a mixed number if you want! :)

jeka57 [31]2 years ago

5 0

Answer where is the pic ?

Step-by-step explanation:

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Describe two different ways you could change the values in the table so that the answer to problem 6 is different.

ladessa [460]

Answer:

Um theres no question or picture. Or document.

Step-by-step explanation:

4 0

2 years ago

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Write the equation of a line perpendicular to 9xplus7yequals6 that passes through the point (9,negative 7).

andrew11 [14]

$k:\ y=m_1x+b_1\\\\l:\ y=m_2x+b_2\\\\k\ ||\ l\iff m_1=m_2\\\\k\ \perp\ l\iff m_1m_2=-1$

We have:

$k:\ 9x+7y=6\ \ \ |-9x\\\\7y=-9x+6\ \ \ \ |:7\\\\y=-\dfrac{9}{7}x+\dfrac{6}{9}\to m_1=-\dfrac{9}{7}\\\\l:\ y=m_2x+b\\\\l\ \perp\ k\iff-\dfrac{9}{7}m_2=-1\ \ \ \ |\cdot\left(-\dfrac{7}{9}\right)\\\\m_2=\dfrac{7}{9}\to\ l:\ y=\dfrac{7}{9}x+b$

We know. The line l passes throught the point (9, -7). Substitute the coordinates of the poin to the equation of line l :

$-7=\dfrac{7}{9}\cdot9+b\\\\-7=7+b\ \ \ \ |-7\\\\b=-14$

$y=\dfrac{7}{9}x-14\ \ \ \ |\cdot9\\\\9y=7x-126\ \ \ \ |-9y\ |+126\\\\7x-9y=126$

Answer: $y=\dfrac{7}{9}x-14\to7x-9y=126$

7 0

3 years ago

Please help me, I am completely lost...

charle [14.2K]

5 is the answer, you are welcome.

8 0

2 years ago

What is the difference 2x-3/3x^2-x+2/6x

Paul [167]

Answer: D

Step-by-step explanation:

To find the difference, we want to make sure both denominators are equal.

$\frac{(6x)(2x-3)}{(6x)(3x^2)} -\frac{(3x^2)(x+2)}{(3x^2)(6x)}$

Now that the denominators are equal, we can distribute and multiply out.

$\frac{12x^2-18x}{18x^3} -\frac{3x^3+6x^2}{18x^3}$

With the fractions multiplied out, we can actually put it into one large fraction.

$\frac{12x^2-18x-3x^3-6x^2}{18x^3}$

Let's subtract the top expression.

$\frac{-3x^3+6x^2-18x}{18x^3}$

This may seem like our final answer, but we can actually factor out an 3x in the numerator and denominator.

$\frac{(3x)(-x^2+2x-6)}{(3x)(6x^2)}$

With the 3x factored out, they cancel out because 3x/3x=1.

Our final answer is:

$\frac{-x^2+2x-6}{6x^2}$

5 0

2 years ago

Find the x and y intercept of -x-4y=16.

GREYUIT [131]

The answer is going too be -4 or you can write it as (0,-4) I think

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2 years ago

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