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ira [324]
2 years ago
8

Through: (1, 3), perp. to y = x + 5

Mathematics
1 answer:
MAXImum [283]2 years ago
8 0

Answer:

y = 3x + 2

Step-by-step explanation:

Convert the equation to slope intercept form to get y = –1/3x + 2.  The old slope is –1/3 and the new slope is 3.  Perpendicular slopes must be opposite reciprocals of each other:  m1 * m2 = –1

With the new slope, use the slope intercept form and the point to calculate the intercept: y = mx + b or 5 = 3(1) + b, so b = 2

So y = 3x + 2

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Two angels in a triangle add up two 115 degrees what is the size of the third angle
Bogdan [553]
The internal angles in a triangle add up to 180
I think the question should say
'2 angles in a triangle add up to 115 degrees'
so therefor
x+y+z=180
2 angles are x+y
115+z=180
z=3rd angle

solve
115+z=180
subtract 115 from boths ides
z=65

answer is third angle=65 degrees
5 0
3 years ago
-3(2 - 4x) = -5<br>....​
gizmo_the_mogwai [7]

Answer:

x = 1/12

Step-by-step explanation:

Assuming you're finding x. As a decimal, it's 0.08333 …

7 0
3 years ago
If 50% of a number is 18 what is 75% of the number
den301095 [7]

Answer:

A) 50% of 36 is 18

B) 75% of 36 is 27

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
6 hundreth = thousandths
ryzh [129]
60 hope it helps and its right


8 0
3 years ago
Can someone please help meee
Mariana [72]

Answer:

Step-by-step explanation:

Ok so you are given the values of the slope-intercept form with m being the slope and b being the y-intercept. So since b is equal to -1 you want to plot a point at (0, -1) since that is the y-intercept (when x = 0). The next thing you want to do is look at the slope, which is essentially saying each time x increases by 5 the y-value decreases by 4 or in other words rise/run which is negative which is why you're going down. So from the point (0, -1) go forward 5 units and go down 4 units which should lead you to (5, -5) and the third point you can plot is by going backwards instead of forwards. So instead of every time x increases by 5 y decreases by 4 you're going to do the inverse. Every time x decreases by 5, y is going to increase by 4. So by doing this from the y-intercept (0, -1) you should go backwards 5 units and up 4 units which should lead you to (-5, 3). And then now just draw a line that goes through all those three points. Hope that helps :)

6 0
1 year ago
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