4t ^ 2 - 16 ÷8 ÷ t - 2 ÷6
=(4t ^ 2)-(16 ÷8 ÷ t)-(2 ÷6)
=(4t ^ 2)-(2/t)-1/3
=4t ^ 2-2/t-1/3
Answer:
5/6
Step-by-step explanation:
4 1/6 / 5
4 1/6 * 1/5
25/6 * 1/5
5/6
Answer:
Diameter: 4km
Radius: 2km (divide diameter by two)
Circumference Formula: c = dπ or c = 2rπ
Circumference Value = 4π or 2(2π)
(the actual answer is 12.56, just do the math)
Step-by-step explanation:
Answer:
6.7 /s.
Step-by-step explanation:
Initial velocity = u m/s
From the question, final velocity, v = - 2u m/s
Note - (the minus sign indicates that the direction was reversed and doubled)
t = 0.45
From equation of motion,
v = u + at
Acceleration, a = (v - u)/t
= (-2u - u)/0.45
= - 3u/0.45
Acceleration, a/Original speed, u = 3/0.45
= 6.7 /s
