First we convert it in seconds.
Number of seconds in 1 minute = 60 seconds
Therefore,
Number of seconds in 4.2 minutes = 4.2 x 60 = 252 seconds.
Next we convert it in hours.
60 minutes make up an hour. So we can write,
Number of hours in 60 minutes = 1 hour
Number of hours in 1 minute = 1/60 hour
Number of hours in 4.2 minutes = 1/60 x 4.2 = 0.07 hour
Therefore, the video is 252 seconds or 0.07 hour long.
Answer:
130 degrees
Step-by-step explanation:
arc CA is 50 since the angle is 50 and then you would subtract from 180 since it is half the circle which leaves you with C, or 130 degrees.
The 6 from 4/6 is the denominator.
Hope this helps <3
Answer:
a
Step-by-step explanation:
i just took the test
Answer:

Step-by-step explanation:
The general equation of a line: 
In our case <em>a</em> is given

Now we plug in for <em>a</em> and we get:

Now we plug in our coordinates into this equation and we solve for <em>b</em>

So the equation of the line is 