Based on the 95% confidence interval, the conclusion would be that the whale-watching company has a 95% chance of seeing between -.507 and 1.307 whales on any given day.
<h3>Why can this conclusion be drawn?</h3>
The test was to find out how many whales could be seen on a given day and this was tested at a 95% significance level.
The 95% confidence interval was shown to be (-0.507, 1.307). This means that there is a 95% chance that between -0.507 and 1.307 whales will be seen on a given day.
Find out more on confidence intervals at brainly.com/question/26267323.
Answer:
a) final angular speed w2 = 414rpm
b) time to stop t = 312.5s
c) angular distance from start to stop s = s = 1171.88 rev
Explanation:
Average angular speed wa = (w1+w2)/2 = Angular distance/time = s/t
Given;
w1 = 450 rpm = 450/60 rev/s = 7.5 rev/s
s = 180 rev
t = 25s
a)
s/t = (w1+w2)/2
w2 = 2s/t - w1
Substituting the values;
w2 = 2×180/25 - 7.5 = 6.9 rev/s
w2 = 6.9×60rpm = 414rpm
b)
Angular deceleration a = (w1-w2)/t = (7.5-6.9)/25
a = 0.024 rev/s^2
time t for w2 = 0
t = (w1-w2)/a = (7.5-0)/0.024
t = 312.5 s
c)
Angular distance from start to stop s;
s = w1t - 0.5at^2
s = 7.5×312.5s - 0.5×0.024×312.5^2
s = 1171.88 rev
Answer:
.50x + 6
Explanation:
You dont know how many tickets she is gonna buy so you use x after the cost of each ticket, and since she needs $6 to get in you have to include that, i hope this helps
"The marble moved 30 cm north in 6 seconds" is the one example among the following choices given in the question that <span>provides a complete scientific description of an object in motion. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer has helped you.</span>
Cell membrane. This is where chemicals enter and exit the cell.