Answer:
X=7 is your answer.
Step-by-step explanation:
If you look down at the chart, look at f(x) and g(x).
If you see that x=7, f(x) and g(x) both equals 5.
X=7 is your answer.
Step-by-step explanation:
The height, h in feet, of a rocket is given by, where t is time in seconds.
...(1)
We need to find the maximum height of the rocket and find the time the rocket was in the air. For maximum height, put
So, it will reach its maximum height in 2 seconds.
Now put t = 2 in equation (1) as follows :
So, the maximum height of the rocket and find the time the rocket was in the air is 254 feet and 2 seconds respectively.
Answer:
60:70
Step-by-step explanation:
Answer:
72f+40
Step-by-step explanation:
Answer:
The lower confidence limit of 99% confidence interval for the mean breaking strength of the briefcases produced today would be equal to 331.09 pounds.
Step-by-step explanation:
Lower limit of confidence interval = mean - Error margin (E)
mean = 341.0 pounds
sd = 21.5 pounds
n = 35
degree of freedom = n - 1 = 35 - 1 = 34
confidence level = 99%
t-value corresponding to 34 degrees of freedom and 99% confidence level is 2.728
E = t × sd/√n = 2.728 × 21.5/√35 = 9.91 pounds
Lower limit = 341.0 - 9.91 = 331.09 pounds