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Katarina [22]
3 years ago
9

Perpendicular to the line x - 5y = 9; containing the point (2, 4)

Mathematics
1 answer:
dezoksy [38]3 years ago
6 0

Answer:

y=-5x+14

Step-by-step explanation:

x-5y=9

x-9=5y

y=\frac{1}{5}x-\frac{9}{5}

The slope for this line is: 1/5

The product of the slopes of any two perpendicular lines equals -1.

So the slope for the perpendicular line will be -5.

The point-slope formula=

Given slope m and a point on the line: (X, Y), the equation of the line will be:

y-Y=m(x-X)

So the equation for the perpendicular should be:

y-4=(-5)(x-2)

Simplify:

y-4=-5x+10

y=-5x+14

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Do not understand please help <br> Thank u
AysviL [449]

Answer:

43.4

Step-by-step explanation:

You will need to use the phythagoream therom, which is a² + b² = c².  Plug the values in for the variables to get 7² + b² = 44², (c would equal the hypothenuse because the hypothenuse is the longest side of the triangle.)  Square the values to get 49 + b² = 1936.  Subtract 49 from both sides to get b² = 1887, then take the square root of both sides to get b = 43.4 (rounded to the nearest tenth.)  

I am really sorry if I'm wrong, but have a good day/night!  :)

6 0
3 years ago
Read 2 more answers
Evaluate 3x-6y if x=2 and y=0
Archy [21]

Answer:

3×2-6×0

6-0

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3 0
3 years ago
Suppose the average math SAT score for students enrolled at local community college is 490.4 with a standard deviation of 63.7.
lakkis [162]

Answer:

Option B) 9.1      

Step-by-step explanation:

We are given the following in the question:

Average score = 490.4

Standard deviation = 63.7

Sample size, n = 49

Formula:

=\dfrac{\sigma}{\sqrt{n}}

Putting values, we get,

Standard error =

=\dfrac{\sigma}{\sqrt{n}} = \dfrac{63.7}{\sqrt{49}} = 9.1

Thus, the correct answer is

Option B) 9.1

8 0
3 years ago
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Vinil7 [7]

Answer:

abc

Step-by-step explanation:

5 0
3 years ago
VERY IMPORTANT QUESTION I WILL GIVE 50 POINTS TO WHOEVER ANSWERS THIS QUESTION
solmaris [256]
I think it might be  expression one =14 i think and number 2 is obviously is 19 but you would put parenthesis around 5+4_2+6 

I think i did this right its been a while since i did this 
 
8 0
3 years ago
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