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Cloud [144]
3 years ago
9

HELP ME PLEASE!

Mathematics
1 answer:
melomori [17]3 years ago
6 0
Do you mean the hypotenuse of the triangle?

If so, you can use pythagorean theorem:

a^2 + b^2 = c^2

11^2 + 8^2 = c^2

121 + 64 = 185 = c^2

c = sqrt(185) = 13.6


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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
Verify that a+b=b+a by taking a=6 and b=3/6
Klio2033 [76]

Answer:

13

Step-by-step explanation:

substitute all the numbers in

6+3/6+3/6+6=13

4 0
3 years ago
How many two- fifths are in four-fifths
gulaghasi [49]
2 two-fifths are in four-fifths.

Hope this helps and have a great day!!!

If you need help just comment on my answer.
5 0
3 years ago
V-3/-10= -4 please answer step by step
Triss [41]

See the pic above!

Hope it helps!

5 0
3 years ago
What is 16 - ( -12 )​
Maksim231197 [3]

Answer:

28

Step-by-step explanation:

16−(−12)

=16−(−12)

=16+12

=28

____________________________________________________________

28 is your answer

(Hope it helps)

3 0
3 years ago
Read 2 more answers
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