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3 years ago

What is the reciprocal of 8/5?

Mathematics

2 answers:

sergeinik [125]3 years ago

5 0

Answer:

Step-by-step explanation:

viva [34]3 years ago

4 0

Answer:

5/8

Step-by-step explanation:

To find the reciprocal, flip the fraction. The sign remains the same.

The reciprocal of 8/5 is 5/8.

Answer: 5/8

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Write an equation of the perpendicular bisector of the segment with the endpoints (8,10) and ( -4,2).

ale4655 [162]

Answer:

The required equation is:

$y = -\frac{3}{2}x+9$

Step-by-step explanation:

To find the equation of a line, the slope and y-intercept is required.

The slope can be found by finding the slope of given line segment. A the perpendicular bisector of a line is perpendicular to the given line, the product of their slopes will be -1 and it will pass through the mid-point of given line segment.

Given points are:

$(x_1,y_1) = (8,10)\\(x_2,y_2) = (-4,2)$

We will find the slope of given line segment first

$m = \frac{y_2-y_1}{x_2-x_1}\\= \frac{2-10}{-4-8}\\=\frac{-8}{-12}\\=\frac{2}{3}$

Let m_1 be the slope of perpendicular bisector then,

$m.m_1 = -1\\\frac{2}{3}.m_1 = -1\\m_1 = \frac{-3}{2}$

Now the mid-point

$(x,y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})\\= (\frac{8-4}{2} , \frac{10+2}{2})\\=(\frac{4}{2}, \frac{12}{2})\\=(2,6)$

We have to find equation of a line with slope -3/2 passing through (2,6)

The equation of line in slope-intercept form is given by:

$y = m_1x+b$

Putting the value of slope

$y= -\frac{3}{2}x+b$

Putting the point (2,6) to find the y-intercept

$6 = -\frac{3}{2}(2)+b\\6 = -3+b\\b = 6+3 =9$

The equation is:

$y = -\frac{3}{2}x+9$

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3 years ago

Which quantity is unknown

OleMash [197]

Answer:

The price of each book without sales tax

Step-by-step explanation:

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3 years ago

When x^3 + kx^2 − 4x + 2 is divided by x + 2 the remainder is 26, find k.

Elis [28]

Answer:

k = 6

Step-by-step explanation:

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3 years ago

3+5=5+ 3•5=5•2+(-2)=0TRUE OR FALSE ? ( for all three of them )

Savatey [412]

Take into account that commutative property is present for addition and multiplication operations, then, you have:

3+5=5+3 TRUE

3·5 = 5·3 TRUE

The inverse addition of a number consists in adding the same numbers but with opposite signs, then, you have:

2 + (-2) = 0 TRUE

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1 year ago

Find the value of 3, y, & z<br> 35°<br> х<br> Z<br> y

Pachacha [2.7K]

Answer:

Step-by-step explanation:

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