825 miles because 495 divided by 9 is 55 so 55=1 mile and 15 miles=825
Your first and second derivatives which are the velocity and the acceleration respectively are correct.
The particle has reverses direction when v(t) ≤ 0 so at interval 2 < t < 5 sec.
You can substitute now t = 2 for s(2) and a(2) for first changing direction. Also t = 5 for s(5) and a(5) for second changing direction.
Answer:
c
Step-by-step explanation:
Answer:x = 7√3/3
Step-by-step explanation:
The given triangle is a right angle triangle. To determine the value of x, we would apply trigonometric ratios of tan but the opposite side and adjacent sides would depend on the reference angle used. Taking 30 degrees as the reference angle,
Tan # = opposite side/adjacent side
Opposite side = x
Adjacent side = 7
# = 30 degrees
Therefore,
Tan 30 = x/7
x = 7tan30 = 7 × 1/√3 = 7/√3
= 7/√3 × √3/√3 = 7√3/3
Sixteen is less than twice a number.
