I think its 68°<or equal to t <or equal to 84
Answer:
The tension force transmitted through the chains
Step-by-step explanation:
The gravitational force can only pull the block downward, so the first two options are incorrect. Normal force is present only when an object is on a surface, so the last option is also incorrect.
Tension is a force exerted by a string or chain, so the third option is correct.
Part A: 5 out 25 lobsters have dangerous levels of mercury
Part B: the 95% confidence interval is given by (4.45, 5.65)
since everything is given all I had to do is find the critical value which can be found from the resource packet = 2.064
Using the formula we find 5.05+-2.064*1.45/5 = ( 4.45,5.65)
For this case, we have 95% of confidence that the true mean for the average number of lobsters with dangerous levels of mercury is between 4.45,5.65
Answer: 15-3=12 12/4=3 each child will pay 3,000