Round the number to the nearest ten place: 1823
1 answer:
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Answer:
: mu1-mu2=0
: mu1-mu2>0
Step-by-step explanation:
Let mu1 be the mean amount of time (in hours) per domestic car repair
and mu2 be the mean amount of time (in hours) per foreign car repair
According to the claim of the automobile technician, the mean amount of time (in hours) per domestic car repair is <em>more than</em> that of foreign cars.
Then <em>null and alternative hypotheses</em> can be stated in <em>symbolic</em> form as
: mu1-mu2=0
: mu1-mu2>0
9514 1404 393
Answer:
45
Step-by-step explanation:
Solving for d, we find ...
3(d +1) = 4(d -2)
3d +3 = 4d -8 . . . . . . eliminate parentheses
11 = d . . . . . . . . . . . . subtract 3d-8
Then the value of 5(d-2) is ...
5(11 -2) = 5(9) = 45
_____
The graphical solution gives both the value of "d" and the value of 4(d-2). To get 5(d-2), we only need to add d-2 to the value of 4(d-2).
5(d-2) = (11 -2) +36 = 45
