Answer:
Jo started decelerating at the 10th minute
His average speed for the last 30 minutes of the journey is 4/30 km/minute
Step-by-step explanation:
To get what Jo did at 10 minute, we look at the graph.
At the 10th minute, we can see that we have a sharp turn from the top to the zero position at the 20th minute
so we can say that Jo started deceleration at the 10th minute
For the last 30 minutes of the journey, he travelled a distance of 4km
So, mathematically, his average speed will be;
Distance/ time = 4km/30 minutes = 4/30 km/minute
Answer:
m<1 = 130°
m<2 = 50°
Step-by-step explanation:
Since given that line a is parallel to line b, and <1 and 130° are interior angles that alternate each other, therefore:
m<1 = 130° (alternate interior angle theorem)
Also,
130° and <2 lie on same side inside the parallel lines cut across by the transversal, therefore,
m<2 + 130° = 180° (same side interior angles theorem)
m<2 = 180° - 130°
m<2 = 50°
(2*5*3)+(2*6*3)+(6*3*2) = 102
Y+2=-4(x+1)
-4 x + -4
Y+2=-4x +-4
-2. +-2
Y=-4x+ -6
This is as far as I can get you too. I don't remember what to do after. Ask your teacher for help tomorrow. I hope I helped!
<10, 15> + <-8, 0> + <0 , -8> + <10, 0> = <2, 7>
v = <2, 7>
||v||2 = 22 + 72
