Equations of parallel and perpendicular lines - item 50805
question 1 of 1
line a is perpendicular to line b. which statement about lines a and his true?
language
the sum of the slopes of fine a and line bis 0.
the product of the slopes of line a and line bis - 1.
the product of the slopes of linea and line bis 1
line a and line b have the same slope.

step-by-step explanation:

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1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m