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3 years ago

The length of a rectangle is 15 centimeters and the width is 8 centimeters. Which is the perimeter of the rectangle?

Mathematics

1 answer:

slava [35]3 years ago

3 0

Perimeter is all outside lengths added up. So 8+8=16. 15+15=30
16+30= 46.

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Why would you use the associative property of multiplication to sole (10*4)*2 how would you regroup the factors?

sleet_krkn [62]

Click this picture to see what associative property is
this is a definition it'll help you understand a little bit better

EXAMPLE OR ANSWER:
(4*2)*10 or (10*2)*4 these are some factors I guess

8 0

3 years ago

Perpendicular to the line 4x - 6y + 7 = 0 , passing through (3, 4) .

PilotLPTM [1.2K]

Answer:

The equation of line perpendicular to given line passing through (3,4) is:

$y = -\frac{3}{2}x+\frac{17}{2}$

Step-by-step explanation:

Given equation of line is:

$4x - 6y + 7 = 0$

Given equation is in standard form. It has to be converted into slope-intercept form to extract slope from the equation.

So,

$4x+7 = 6y\\6y=4x+7\\\frac{6y}{6} = \frac{4x+7}{6}\\y = \frac{4}{6}x+\frac{7}{6}\\y=\frac{2}{3}x+\frac{7}{6}$

The standard form of slope-intercept form of equation is:

$y=mx+b$

Here, the co-efficient of x is the slope of the line.

So the slope of given line is: 2/3

m = 2/3

The product of slopes of two perpendicular lines is -1

Let m1 be the slope of line perpendicular to given line

Then

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

The equation of perpendicular will be:

$y = m_1x+b$

Putting the value of slope

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

To find the value of b, putting (3,4) in the equation

$4 = -\frac{3}{2}(3)+b\\4 = -\frac{9}{2}+b\\b = 4+\frac{9}{2}\\b= \frac{8+9}{2}\\b=\frac{17}{2}$

So the equation of line perpendicular to given line passing through (3,4) is:

$y = -\frac{3}{2}x+\frac{17}{2}$

7 0

3 years ago

6 more than thrice a number is 36

posledela

3n+6=36
Hope this helps

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3 years ago

Is this a function?...

irina1246 [14]

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3 years ago

Read 2 more answers

Find the slope to the graph

gulaghasi [49]

Answer:

the slope is 3/2

Step-by-step explanation:

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3 years ago