Answer:
7) 8.94
8) 6.71
Step-by-step explanation:
for both questions, use pythagorean theorem
<u>Question 7:</u>
16 + 64 = 
80 =
c = 8.94
<u>Question 8:</u>
36 + 9 =
45 =
c = 6.71
Answer:a
Step-by-step explanation:
Let the angle of elevation is x and the height of the rocket from the ground is y
tanx = y/15
by differentiating both sides with respect to T
sec²x·dx/dt = (dy/dt)/15
at y = 30 , the hypotenuse of the triangle = 15√5
sec²x=(15√5/15)²=5
5 dx/dt = 11/15
dx/dt = 11/75 rad/sec
Answer:
look at where the points are placed y is 70 and x is 4 then you get (4, 70)
