Answer:
A. 3 < t < 9
Step-by-step explanation:
When the particle is moving to the right, the velocity is positive.
To find the velocity, take the derivative of s(t) with respect to t.
s(t) = -t³/3 + 13t²/2 − 30t
s'(t) = -t² + 13t − 30
Find when the velocity is 0.
0 = -t² + 13t − 30
0 = t² − 13t + 30
0 = (t − 3) (t − 10)
t = 3, 10
Check the sign of s'(t) in each interval.
0 < t < 3, s'(t) < 0
3 < t < 9, s'(t) > 0
The particle moves to the right when 3 < t < 9.
Answer:
18.75 or 18 3/4 lbs
Step-by-step explanation:
We just have to multiply 11 1/4 and 1 2/3 to get the product, 18.75 or 18 3/4.
First we have to translate our fractions into decimals:
11.25 (11 1/4) and 1.166667 (1 2/3)
multiply:
11.25 x 1.166667 = 18.75
convert back to fraction:
18 3/4
Hope This helps! Good Luck! If you have any questions please ask me, I would me more than happy to help you understand this method. If you are doing it a different way, I can help with that too.
The answer is D. Most of the other answers are way to high to make sense
Answer:
The study is basically qualitative in nature. In order to provide a justification for the adoption of this model, a sample of 150 respondents from this model is compared with the same number from the other model. The Cronbach's alpha is calculated to be 0.5.
