Answer:
9.7 * 10 to power of 4
Step-by-step explanation:
60% if there are only 10 white and black balls
Answer: Given a sample of 200, we are 90% confident that the true proportion of people who watched educational TV is between 72.1% and 81.9%.
Step-by-step explanation:


=0.049
0.77±0.049< 0.819, 0.721
Answer: 38 feet.
Step-by-step explanation:
The equation of motion of a body thrown vertically upwards:
,

Substitute in formula (1) the value t=2 c:

It's 48/200=0.24$ per a bead
She will have to pay 0.24*25=6$