Answer:
(75 × 12) + (3 × 580) = 2640
Step-by-step explanation:
Answer:
62 is the minimum sample size needed
Step-by-step explanation:
We know that the population is approximately normally distributed so we will use a z-score for 95% confidence, which is 1.96. We are given the population standard deviation of σ = 20, and are given that the error should be 5 or less hours. The fact that it gives us sample data is irrelevant since we are told the population is approximately normally distributed and are given the population standard deviation.
See the attached photo for the calculation of the minimum sample size
X=11/21
I think best of luck :)
Answer:
625 seconds and 10 minutes
Step-by-step explanation:
distancs=S=5km=5000m
average speed=v=8m/s
time taken=t=?
as we know that
average speed=
average speed×time taken=distance covered
here we have to find the time taken
time taken=
time taken=
time taken=625seconds
now we convert seconds into minutes

10 minutes
Answer:
- D) A vertical dilation by a factor of 3 and a vertical shift down 2 units
Step-by-step explanation:
<u>Given</u>
- f(x)=10^x
- g(x)=3(10)^x - 2
<u>We see that:</u>
This is a vertical stretch by a factor of 3 and translation down 2 units
Correct choice is D