Answer:
Step-by-step explanation:
Aromatic amine is generally less nucleophilic than aliphatic amine because of the aromatic delocalisation of the lone pair. Ketones are also less reactive compared to aldehyde and Reaction between aromatic amine and aromatic ketone is possible leading to the formation of Schiff's base in aqeous ethanoic solution.
Answer:
food : 22
clothes : 48
Step-by-step explanation:
70 - 26 = 44
44 divided by 2 = 22
22 + 26 = 48
70 - 48 = 22
The answer is D. Subtract 9y from both sides of the equation.
Answer:
Tyrone
Step-by-step explanation:
In a race the shortest time is the winner.
In this case the ones and the tens place are all the same so we look to the tenths place in which Tyrone has a 0 which is the lowest.
Answer:
90% confidence interval for the population mean is between a lower limit of $92.18 and an upper limit of $107.82.
Step-by-step explanation:
Confidence interval for a population mean is given as mean +/- margin of error (E)
mean = $100
sd = $25.20
n = 30
degree of freedom = n-1 = 30-1 = 29
confidence level (C) = 90% = 0.9
significance level = 1 - C = 1 - 0.9 = 0.1 = 10%
critical value (t) corresponding to 29 degrees of freedom and 10% significance level is 1.699
E = t×sd/√n = 1.699×25.20/√30 = $7.82
Lower limit of population mean = mean - E = 100 - 7.82 = $92.18
Upper limit of population mean = mean + E = 100 + 7.82 = $107.82
90% confidence interval is ($92.18, $107.82)
