Use the diagram to complete the statements. (0, 1)
15 12
(13'13
cos A=
V
70
tan A=
DONE
(-1,0)
7T
x
(1,0)
37
2
(0, -1)

Answers:

Explanation:

Recall that

when dealing with the unit circle.

The x coordinate of the point shown is x = 5/13, which tells us that cos(A) = 5/13.

We can also see that y = 12/13 which leads to sin(A) = 12/13.

Divide sine over cosine to get tangent

tan(A) = sin(A)/cos(A)

tan(A) = sin(A) ÷ cos(A)

tan(A) = (12/13) ÷ (5/13)

tan(A) = (12/13) * (13/5)

tan(A) = 12/5

In the last step, the '13's cancel out.

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