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3 years ago

Please help me with this, and my answer from part A is 2 2/3 ft^

Mathematics

2 answers:

balandron [24]3 years ago

6 0

2 2/3 feet is converted to 8/3. Multiply that by three to get 8.

Dvinal [7]3 years ago

5 0

Answer:

Step-by-step explanation:

2 2/3 x 3 = 8/3 x 3

8/3 x 3 = 8

First convert the mixed number to an improper fraction which will give you

8/3 x 3 =

Then you reduce the numbers with the greatest common divisor

So your answer will be 8

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Which equations represent the line that is perpendicular to the line 5x − 2y = −6 and passes through the point (5, −4)? Select t

nignag [31]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

On the other hand we have that if two lines are perpendicular, then the product of their slopes is -1. So:

$m_ {1} * m_ {2} = - 1$

The given line is:

$5x-2y = -6\\-2y = -6-5x\\2y = 5x + 6\\y = \frac {5} {2} x + \frac {6} {2}\\y = \frac {5} {2} x + 3$

So we have:

$m_ {1} = \frac {5} {2}$

We find $m_ {2}:$ $m_ {2} = \frac {-1} {\frac {5} {2}}\\m = - \frac {2} {5}$

So, a line perpendicular to the one given is of the form:

$y = - \frac {2} {5} x + b$

We substitute the given point to find "b":

$-4 = - \frac {2} {5} (5) + b\\-4 = -2 + b\\-4 + 2 = b\\b = -2$

Finally we have:

$y = - \frac {2} {5} x-2$

In point-slope form we have:

$y - (- 4) = - \frac {2} {5} (x-5)\\y + 4 = - \frac {2} {5} (x-5)$

ANswer:

$y = - \frac {2} {5} x-2\\y + 4 = - \frac {2} {5} (x-5)$

3 0

3 years ago

Read 2 more answers

which equation shows the point slope form of the line that passes through (3,2) and has a slope of 1/3

gavmur [86]

Answer:

y=1/3x+1

Step-by-step explanation:

y=mx+b

y=1/3x+b

2=1/3(3)+b

2=1+b

1=b

y=1/3x+1

8 0

3 years ago

What is the greatest common factor of 28 and 46?

tester [92]

28=2*2*7=2²*7; 46=2*23=>the greatest common factor is 2

8 0

3 years ago

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Lucy made $65 for 5 hours of work.

shusha [124]

Answer:

169

Step-by-step explanation:

65 divided by 5 to get 13

and multiply that with 13

like this: 13x13

to get 169

6 0

3 years ago

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Point b is the midpoint of ac-. if ab= 4x+2 and ac=10x-6, find the length of ac

Natasha2012 [34]

let's bear in mind that B is the midpoint and thus it cuts a segment into two equal halves.

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3 0

3 years ago