Answer:
the first and the second answer
Step-by-step explanation:
Answer:21
Step-by-step explanation:
Look at attatched file.
f(4)=9*4-2 =34 & g(4)= -2*4 =-8 then,
f(4)- g(4) = 34+8= 42
Answer:
1 hour=8.5miles
Step-by-step explanation:
if the boat traveled 17 miles in 2 hours then in 1 hour the boat traveled, because 17/2=8.5
idek if this answers your question but 8.5*72=612
Solution :
Given :
Sample mean,
Sample size, n = 40
Standard deviation, s = 83.2
∴ The null hypothesis is
Alternate hypothesis is
Test statistic :
z = 0.813
Now at α = 0.05, for a right tailed,
Since, , we fail to reject the null hypothesis.