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2 years ago

Convert 65 miles per hour to kilometers per hour. Use unit analysis to set up and solve.

2 answers:

6 0

Since there's 1.60934 kilometers in a mile, we just have to multiply to make the conversion:
65mi * 1.60934 = 104.607 km

Artist 52 [7]2 years ago

3 0

Answer:

104.607 Kilometers per Hour.

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The coordinates of P and Q are (2,6) and (4,5) respectively. Equation of a line RS is Y= 2X -3. Determine if the lines are paral

Travka [436]

Answer:

Perpendicular

Step-by-step explanation:

Given points P=(2,6) and Q=(4,5)

The line RS is y=2x-3.

Now we know that the line joining any two points (x1,y1) and (x2,y2) has slope m= $\frac{y2-y1}{x2-x1}$

Now the slope of the line PQ is

m1= $\frac{5-6}{4-2}$ = - $\frac{1}{2}$

We know that the slope of the line in the form y=mx+c is m

So the line RS has slope m2=2

Now two lines are parallel if m1=m2

And those two lines are perpendicular if $m1*m2=-1$

here m1= - $\frac{1}{2}$ and m2=2

clearly $m1*m2=-1$

Therefore the two given lines are perpendicular

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2 years ago

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borishaifa [10]

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