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3 years ago

True or false: the following graph demonstrates a proportional relationship between y and x. Explain.

Mathematics

2 answers:

MA_775_DIABLO [31]3 years ago

8 0

Answer:

true cuz i say so

Step-by-step explanation:

Neko [114]3 years ago

7 0

False, it doesn't cross through the origin and it's addition.

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79% of 67 miles is what? Round answer to tenths place.

Neporo4naja [7]

Answer:

52.9

Step-by-step explanation:

Multiply 67 by .79

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3 years ago

In a wireless automatic meter reading system, a base station sends out a wake-up signal to nearby electric meters. On hearing th

NeTakaya

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The product mass function is calculated taking different values of x=1,2,3,4.....

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4 years ago

The graph shows the charge for a health club in a month. Write an equation that can be used to find the total charge (y) for the

babymother [125]

Answer:y=5x+30

Step-by-step explanation:

The y-intercept is 30 so it is y=?+30

Then the x changes value at a constant rate of 5

So... it is y=5x+30

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3 years ago

1. Draw a quadrilateral with 2 parallel sides. It should have 2 pairs of perpendicular lines.

Elenna [48]

Answer:

draw a rectangle

Step-by-step explanation:

a rectangle has 2 long sides and 2 short ones it has 2 sets of simailer and has 2 perpundicular

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2 years ago

A. Show that the vector v = ai + bj is perpendicular to the line ax + by = c by establishing that the slope of v is the negative

pishuonlain [190]

Answer:

Part A:

$m_1m_2=-1$

$\frac{b}{a}(\frac{-a}{b})=-1\\-1=-1$

Hence proved that Vector= ai + bj is perpendicular to the line ax + by = c.

Part B:

Slope of vector = $\frac{b}{a}$

Step-by-step explanation:

Condition for perpendicular is:

$m_1m_2=-1$

Part A:

Consider the vector v = ai + bj

x component of vector=a

y component of vector=b

Slope of vector= $m_1=\frac{y}{x}=\frac{b}{a}$

Consider the line ax + by = c:

Rearranging the equation:

ax+by=c

by=c-ax

y= $\frac{-ax}{b}+\frac{c}{b}$

According to general equation of line: $y=mx+c$

Where m is the slope

In our case the slope of above line is:

$m_2=\frac{-a}{b}$

According to the condition of perpendicular:

$m_1m_2=-1$

$\frac{b}{a}(\frac{-a}{b})=-1\\-1=-1$

Hence proved that Vector= ai + bj is perpendicular to the line ax + by = c.

Part B:

Slope of vector is also calculated above.

Since the slope of vector is negative reciprocal of the slope of the given line:

According to equation of line ax + by = c

y= $\frac{-ax}{b}+\frac{c}{b}$

According to general equation of line: $y=mx+c$

Where m is the slope

Slope of given line=m= $\frac{-a}{b}$

negative reciprocal of the slope of the given line = $\frac{b}{a}$

Slope of vector = $\frac{b}{a}$

5 0

3 years ago