Term to be added is: + 121/4
t^2 + 11t + 121/4
(t + 11/2) (t + 11/2)
puedes mandarme esa respuesta a mi intagran por fis
Fee_paulino14
Lol I just answered the same question minutes ago. Here is the answer I gave him/her.
Total Cost : 1800
12 dollars * 16 hours = 192 dollars earned
0.2 percent * 192 = 38.4 dollars saved
A.She earns 192 dollars every week
B. she will save 38.4 dollars * 7 weeks = 268.8 dollars in a week.
C. 7 days times 4.3 weeks = 30.1 days. 30.1 days * 38.4 = 1,155.84 dollars every month.
D. it will take her about 2 months to save the money. To be exact: 1.6 months.
Hope this helped!
Answer:
99% confidence interval for the mean value from the random number generator is a lower limit of 85.87 and an upper limit of 110.93.
Step-by-step explanation:
Confidence interval = mean +/- margin of error (E)
mean = 98.4
sd = 16.3
n = 15
degree of freedom (df) = n - 1 = 15 - 1 = 14
confidence level (C) = 99% = 0.99
significance level = 1 - C = 1 - 0.99 = 0.01 = 1%
t-value corresponding to 14 df and 1% significance level is 2.977.
E = t×sd/√n = 2.977×16.3/√15 = 12.53
Lower limit = mean - E = 98.4 - 12.53 = 85.87
Upper limit = mean + E = 98.4 + 12.53 = 110.93
99% confidence interval for the mean is between 85.87 and 110.93
