Answer:
66 minutes
Step-by-step explanation:
<u>Solve for speed</u>
speed = distance / time
speed = 6 / 44
<u>Substitute in speed to second equation and solve for time</u>
distance / speed = time
9 / (6/44) = time
66 = time taken
2=-3(5)+b. First, you isolate the variable 2-3(5)=b. Then you solve 2-3(5)=2-15=-13. So -13=b
Evaluating the tangent function for the two values we obtain the following:
tan 135=tan(135+180)=tan 315=-1
next:
tan -135=tan(180-135)=tan 45=1
thus comparing the two we see that tan 135 is negative while tan -135 is positive