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3 years ago

Plz help I don’t understand factors at all

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

4 0

Factors are numbers that divide evenly into a number

best way to do it start at 1 and go up

example 24

1 and 24

2 and 12

3 and 8

4 and 6

5 and (that's doesn't go in evenly so it not a factor)

6 and 4 and when they repeat like this, stop

Now list all your numbers

1, 2, 3, 4, 6, 8, 12, 24 and the factors of 24

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3 years ago

Perpendicular to the line 2x-5y=-11; passes through (7,5)

Westkost [7]

Answer:

$y=-\frac{5}{2}x+\frac{45}{2}$

Step-by-step explanation:

The slope intercept form of a line is given as:

y = mx + c

Where m is the slope and c is the y-intercept

Let's rearrange the equation given in this form:

2x - 5y = -11

5y = 2x + 11

y = 2/5 x + 11/5

So the slope is 2/5

Slope of line that is perpendicular to this is the "negative reciprocal" of this slope. Which means the slope of perpendicular line would be -5/2

Thus, equation would become: y = -5/2x + c

Now we need to find c. For this we plug in 7 into x and 5 into y and solve for c [(7,5) is the point given]. Thus,

$y=-\frac{5}{2}x+c\\5=-\frac{5}{2}(7)+c\\5=-\frac{35}{2}+c\\c=5+\frac{35}{2}\\c=\frac{45}{2}$

Thus, the equation of perpendicular line is:

$y=-\frac{5}{2}x+\frac{45}{2}$

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I hope this helps you feel free to contact me

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