Pretty sure it’s b. i could be wrong though
Answer:
confidence coefficient for 99% is 2.58
2.58 * 19.4/sqrt(n) = 0.04
2.598*19.4/0.04 = sqrt(n)
( 2.598*19.4/0.04)^2 = n
1587676
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confidence coefficient for 90% is 1.64
(1.64*19.4/0.04)^2 = 632661.16
Answer and Explanation :
The forces are balanced because an unbalanced force will cause the Ferris wheel to accelerate.
According to Newtons's first law of motion, a body will continue in its state of rest or uniform motion unless it is acted upon by an unbalanced force. According to the question, the Ferris wheel moves in a vertical circle at a constant speed.
Note that, the fact that the speed is constant implies that the forces are balanced because an unbalanced force will cause the Ferris wheel to accelerate.
Infants have 20 deciduous teeth, whereas adults have 32 permanent teeth.
<h3>What is deciduous teeth?</h3>
Milk or deciduous teeth are the first set of a teeth grown by a child. It start growing from the gums from the age of 6months.
While permanent teeth grows in adult and usually stronger than temporary teeth.
Deciduous teeth are usually small compare to permanent teeth and it is whiter.
Permanent teeth develops through the childhood till maturity.
Therefore, infants have 20 deciduous teeth, whereas adults have 32 permanent teeth.
Learn more on deciduous teeth below
brainly.com/question/27787229
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