Answer:
4.16
Step-by-step explanation:
4.16
because thousanth is 5
Answer: 2.36 radians
Step-by-step explanation:
The number of students with heights less than 163 cm should be expected is 12.
According to the statement
The mean of height is 175 cm
and the standard deviation of height is 6 cm.
We use normal distribution here with formula
Z= X - μ /σ
Here X is 167.5 and μ is 175 and σ is 6 cm.
Substitute the values in it then
Z = 167.5 - 175 / 6
Z = -1.25
-1.25 have a p value 0.012
Out of 1000 students:
0.012 x 1000 = 12.
So, The number of students with heights less than 163 cm should be expected is 12.
Learn more about DISTRIBUTION here brainly.com/question/1094036
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Answer: The strength of an electric field is E = - 0,05.10⁹ N/C.
Step-by-step explanation: According to the question, the plastic sphere is in equilibrium in an electric field. This sugests that the forces acting on the sphere, which are Gravitational Force (Fg) and Electric Force (Fe) are also in equilibrium, denotating Fg=Fe.
As Fg = m . g, with m = 0,009kg and g= 9,8m/s², we have Fg = 0,0882N.
Knowing the value of Fe, the strength of the electric field can be calculated as
E = Fe/Q, in which Q is the electric charge.
E = (0,0882) / (-1,6·10⁻⁹)
E = - 0,05·10⁹N/C
Try to find the area of this cylinder and with that you shall get the answer.... Do you need steps?
