By publicating it in public
Answer:
The answer is 0.9599.
Explanation:
mu (sample) = mu = 8.4
s.d. (sample) = 1.8/ sq. rt. 40
P( greater than 8.1) = (8.9-8.4)/(1.8/ sq. rt. 40)
Let x be the mean time for the 40 mechanics
Standardize the mechanics: (8.9-8.4)/(1.8/ sq. rt. 40) = 1.75 = Z
P( x > 8.9) = P(Z > 1.75), this means the area to the right of Z = 1.75.
Then you need to look in the table of the Normal distribution, Z(1.75) =0.9599
In physics, there are two types of quantities
- Scalar quantity
- Vector quantity
Scalar quantities are quantities that have magnitude but no direction. Examples of such quantities include speed, pressure, etc
Vector quantities are quantities that have both magnitude and direction. Examples of such quantities include velocity, acceleration etc.
Vector quantities are represented by an arrow over the position of the object to denote its direction.
Learn more on vector quantities here: brainly.com/question/356987
Answer:
u forgot to say the other options
Explanation:

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