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dimaraw [331]
4 years ago
10

Endpoints of segment MN have coordinates (0, 0), (5, 1). The endpoints of segment AB have coordinates (1 1/2 , 2 1/4 ) and (−2 1

/4 , k).
What value of k makes these segments perpendicular?
Mathematics
1 answer:
Zielflug [23.3K]4 years ago
7 0

Answer:

k=21

Step-by-step explanation:

Find the slope of MN which is 1/5 (use the slope formula)

Use the slope formula for AB using k as y_2

Substitute and you get k=21

21-2.25/-2.25-1.5=-5

The lines are perpendicular because the slopes are the negative reciprocal of one another.

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Hi guys i cant get this question can yous please help me its due in two days
Natasha2012 [34]

Answer:

(2400+420).

Step-by-step explanation:

We can break this into the same pattern as the other numbers, giving us:

(60×40)+(60×7)

When we multiply these we get:

(2400+420).

7 0
4 years ago
Explain how to find the greatest common factor of three numbers. Plz need this bye 8:03
andreev551 [17]
==> list the factors of the first number
==> list the factors of the second number
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5 0
3 years ago
I sold 32 posters for a total of 126. And I sold 48 posters for a total of 240. If the relationship between the number of poster
Oksanka [162]

Answer:

The cost per print expressed as a slope is 7.125

Step-by-step explanation:

To calculate the cost per print, let’s envision that we have a graphical representation of cost of posters against the number of posters

We have the cost on the y-axis and the number of posters on the x axis

With the information given in the question, we shall be having two data points

Point 1 = (32,126)

point 2 = (48,240)

Now to find the slope of the line which is cost per print, we make use of both points in the slope equation.

Mathematically, slope m will be

m = y2-y1/x2-x1

Thus, we have;

m = (240-126)/(48-32)

m = 114/16

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The cost per print expressed as a slope is 7.125

7 0
3 years ago
All simplified answers for 6x+1-(3x-1)
sertanlavr [38]

Answer:

Step-by-step explanation:

Simplify ——————

3x - 1

Equation at the end of step 1 :

(6x - 1)

y - ———————— = 0

3x - 1

Step 2 :

Rewriting the whole as an Equivalent Fraction :

2.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using (3x-1) as the denominator :

y y • (3x - 1)

y = — = ————————————

1 (3x - 1)

7 0
3 years ago
Help me please ?! Finding coordinates of vertices of polygons. What’s A and B ?
ohaa [14]

Answer:

A is (0,-s) and B is (r, 0)

Step-by-step explanation:

Assuming this is symmetrical, point A and point B are direct opposites from the points on the same axis as them

So point A has the same distance from (0,0) as point C.

Lets say point C is (0, 5). That would make point A (0, -5) because it has the same distance from (0,0) as does C, and theyre direct opposites.

8 0
3 years ago
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