Answer:
The population mean is 5 volts
Step-by-step explanation:
Output voltage is assumed to be normally distributed, with standard deviation 0.25 Volts
s=0.25
n = 8
Sample mean = 
Since n < 30 and population standard deviation is unknown
So, we will use t test
Formula : 
t=-1.69
Refer the t table for p value
Degree of freedom = n-1 = 8-1 = 7
So,
P value >α
So, We are failed to reject null hypothesis
Hence The population mean is 5 volts
8.2 to the nearest one is 8
Answer:
Step-by-step explanation:
√12
Try putting it in your calculator. What digit comes next? Any number you pick from 0 to 9 is a guess. That's one of the ways you can tell if a number is irrational or not. You could get the answer from the calculator that came with windows. It gives the answer to 18 digits, but you'd still be guessing the 19th one.
The others are all well behaved in comparison.
Answer:
(A) 120°
Step-by-step explanation:
m∠P=x
m∠S=2x
m∠Q=x
m∠R=2x
Sum of the angles in trapezoid is 360°.
x+x+2x+2x=360
6x=360
x=60°
m∠R=2x=2*60=120
Answer:
21+m m=miles on the unknown day amount
Step-by-step explanation:
It depends if its about the patterns
You could put a number such as five or nine so I just put up the equation to it
