Answer:
4 7/10
Step-by-step explanation:
2 3/5 = 2 6/10
2 6/10 - 5/10 = 2 1/10
2 6/10 + 2 1/10 = 4 7/10
Step-by-step explanation:
The answer will be 9 I hope this help you
Answer:
The altitude is changing at a speed of 200 √3 km/hr
Step-by-step explanation:
Here, we want to know how far the altitude of the plane is changing
we are told that the airplane makes an angle of 60 degrees with the ground
So therefore , the rate of change of its altitude will be ;
sin 60 = x/ 400
x = 400 sin 60
x = 400 * √3/2
x = 200 √3 km/hr