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4 years ago

A scatterplot can be used to graph two-variable data sets. O True O False

Mathematics

2 answers:

katrin2010 [14]4 years ago

8 0

Answer:

True

Step-by-step explanation:

Its true because a scatter plot (aka scatter chart, scatter graph) uses dots to represent values for two different numeric variables. The position of each dot on the horizontal and vertical axis indicates values for an individual data point. Scatter plots are used to observe relationships between variables.

BigorU [14]4 years ago

3 0

I think the answer is True but not sure

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Write an equation of the perpendicular bisector of the segment with endpoints Q(−2,0)

olga nikolaevna [1]

The equation of perpendicular bisector of QR is:

$y = -\frac{2}{3}x+\frac{22}{3}$

Step-by-step explanation:

Given points are:

$Q(-2,0)\ and\ R(6,12)$

First of all, we have to find the slope of the given line

So,

$m = \frac{y_2-y_1}{x_2-x_1}$

Here

(x1,y1) = (-2,0)

(x2,y2) = (6,12)

Let m1 be the slope of QR:

Then

$m_1 = \frac{12-0}{6+2}\\= \frac{12}{8}\\= \frac{3}{2}$

Let m2 be the slope of perpendicular bisector

We know that the product of slopes of two perpendicular lines is -1

$m_1.m_2 = -1\\\frac{3}{2}.m_2 = -1\\m_2 = -1 * \frac{2}{3}\\m_2 = -\frac{2}{3}$

The bisector will pass through the mid-point of QR

$M = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})\\M = (\frac{-2+6}{2}, \frac{0+12}{2})\\M = (\frac{4}{2}, \frac{12}{2})\\M = (2,6)$

Slope-intercept form of equation is:

$y = m_2x+b$

Putting the value of slope

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

Putting (2,6) in the equation

$6 = -\frac{2}{3}(2)+b\\6 = -\frac{4}{3}+b\\b = 6+\frac{4}{3}\\b = \frac{18+4}{3}\\b = \frac{22}{3}$

So,

$y = -\frac{2}{3}x+\frac{22}{3}$

Hence,

The equation of perpendicular bisector of QR is:

$y = -\frac{2}{3}x+\frac{22}{3}$

Keywords: Mid-point, equation of line

Learn more about equation of line at:

#LearnwithBrainly

3 0

3 years ago

To fit between two windows, the width of a bookshelf must be no greater than 6.5 feet. Mrs. Aguilar purchases a bookshelf that i

expeople1 [14]

Answer:

The bookshelf will fit between the windows with 1 inch remaining.

Step-by-step explanation:

First, I will convert 6.5 feet to inches.

6.5 × 12 = 78 inches

So, there is 78 inches between the windows.

78 - 77 = 1 inch remaining

The bookshelf will fit between the windows with 1 inch remaining.

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4 years ago

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I will give u brainliest

Lubov Fominskaja [6]

Answer:

2.2

Step-by-step explanation:

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3 years ago

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Which of the following inequalities matches the graph?

IRINA_888 [86]

Answer:

the answer is C, comment if you need explanation

Step-by-step explanation:

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3 years ago

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State the restrictions of 1-x-y/x+y

Ronch [10]

The restriction of the expression as given in the task content is; x +y = 0.

<h3>What is the restriction of the expression?</h3>

The expression in the task content is rational;

(1-x-y)/(x+y).

On this note, the restriction to the expression is the values which render the denominator of the expression equal to 0 and consequently the expression value to undefined.

Hence, the restriction is; x+y = 0.

Read more on undefined rational function;

brainly.com/question/8984184

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2 years ago