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3 years ago

!!!!45 POINTS !!! PLEASE HELP

Mathematics

2 answers:

laiz [17]3 years ago

8 0

Answer:

answer is that A and C and E are proportional to 225/5

Step-by-step explanation:

270/6=45

315/6.5=48.46

360/8=45

8090 [49]3 years ago

5 0

Answer:

A, C, E

Step-by-step explanation:

270/6 = 45

315/6.5 = 48.46

360/8 = 45

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MATH HELP

elena-s [515]

The equation of line perpendicular to given line is:

$y = \frac{2}{3}x-1$

Step-by-step explanation:

Given equation is:

$3x+2y = -8$

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

So,

$3x+2y = -8\\2y = -3x-8\\$

Dividing both sides by 2

$\frac{2y}{2} = \frac{-3x-8}{2}\\y = \frac{-3x}{2} - \frac{8}{2}\\y =-\frac{3}{2}x-4$

As the equation is in slope-intercept form, the co-efficient of x will be the slope of the line

$m_1 = -\frac{3}{2}$

As we know that product of slopes of two perpendicular lines is -1

Let m-2 be the slope of line perpendicular to given line

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

Slope-intercept form is:

$y = m_2x+b$

putting the value of the slope

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

Putting the point (3,1) in the equation

$1 = \frac{2}{3}(3) +b\\1 = 2 + b\\b = 1-2\\b = -1$

Putting the value of b

$y = \frac{2}{3}x-1$

Hence,

The equation of line perpendicular to given line is:

$y = \frac{2}{3}x-1$

Keywords: Slope-intercept form, slope

Learn more about equation of line at:

#LearnwithBrainly

8 0

3 years ago

Evaluate the expression.<br> –3×(6– -6÷3)<br> PLEASE HELP

sergeinik [125]

-24 i hope this is right

7 0

2 years ago

Read 2 more answers

Solve x^2-3x-20=8 for quadratic equation

snow_lady [41]

Answer:

x = -7

x = 4

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A standard showerhead dispenses 50 gallons of water in 20 minutes. At this rate, how many gallons of water will a standard showe

liq [111]

Answer:

= 12.5 gallons

Step-by-step explanation:

50 gallons per 20 mins

50/20=5/2

5/2 per minute so 5 mins is

5/2 x 5 = 25/2

=12.5 gallons

3 0

3 years ago

Read 2 more answers

27 1/5 over 4/5 as a unit rate

REY [17]

Answer:

$\frac{34}{1}$ or $34$

Step-by-step explanation:

we know that

To find the unit rate divide 27 1/5 by 4/5

but first

Convert mixed number to an improper fraction

$27\frac{1}{5}=27+\frac{1}{5}=\frac{27*5+1}{5} =\frac{136}{5}$

$\frac{136}{5}:\frac{4}{5}=\frac{136}{4}=\frac{34}{1}$

8 0

3 years ago