1,000 pounds 200 ounces
25,000 ounces
16,500 pounds
7 tons 200 pounds 100 ounces
The total population given is 5
The number of possible samples of size 2 that can be made from these 5 values are 10
The means of these 10 values will represent the mean of the sampling distribution.
Hence the given statement is correct
Basically when the object hits the ground, f(t) is equal zero. So all you need to do is to solve the quadratic equation:
-5t^2 + 20t + 60 = 0
D = b^2 - 4ac = 20^2 - 4 × (-5) × 60 = 400 + 1200 = 1600
t1 = (-b + sqrt(D)) / 2a = (-20 + 40) / (-10) = -2
t2 = (-b - sqrt(D)) / 2a = (-20 - 40) / (-10) = 6
Since time can't be negative, our solution is t2.
So the object will hit the ground in 6 seconds.
Answer:
left ?= 110
right?= 70
Step-by-step explanation:
