Answer:
The upper bound is 399.5
Step-by-step explanation:
Let's start by calculating the mean value of the distribution as the addition of all values given divided by 12:
Average = 289.75.
If the standard deviation is 56, then the upper bound in 95% the confidence interval for the mean price of the phones is going to be given by the mean value added to 56 times 1.96 (since 95% of the population is withing 1.96 times the standard deviation)
That is: 289.75 + 56 * 1.96 = 399.51
which rounded to one decimal place gives: 399.5
Replace x with 10 and simplify the fraction.
40/10 = 4/1 = 4
The answer is 4
L=R*angle, but the angle *must* be in radians. So, just translate 43 degrees into radians: 43 * pi / 180, and you'll get:
L = 42 * ( 43 * pi / 180 ) ~ 31.504666, which rounded to the nearest hundredth is 31.50 cm.
Answer: 4
Step-by-step explanation:
The best and most correct answer among the choices provided by the question is the third choice.
The notation "<span>AB (with line over) =4" is the equation that has the most correct notation.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
