Step-by-step explanation:
-3x+5y-(-6x)+3y
-3x+5y+6x+3y
-3x+6x+5y+3y
3x+2y.
Answer:
With 95% confidence when n equals 44, the population mean is between a lower limit of 33.96 and an upper limit of 40.04
Step-by-step explanation:
Confidence Interval = mean + or - Error margin (E)
mean = 37
sd = 10
n = 44
degree of freedom = n - 1 = 44 - 1 = 43
t-value corresponding to 43 degrees of freedom and 95% confidence level is 2.0165
E = t × sd/√n = 2.0165×10/√44 = 3.04
Lower limit = mean - E = 37 - 3.04 = 33.96
Upper limit = mean + E = 37 + 3.04 = 40.04
95% confidence interval is between 33.96 and 40.04
A.) The circumference of the tire is 94.2
B.) The tire will have to rotate 56 times to
travel 1 mile.
I believe it is C hope this helps
