Answer:
circumference
y=69.1
z=84.8
greater by 15.7 m
Step-by-step explanation:
circuference of a circle is
D
84.8-69.1=15.7
Answer:
a
The correct option is B
b
The correct option is D
Step-by-step explanation:
From the question we are told that
The level of significance is 
The p-value is 
Considering question b
Given that the
then the null hypothesis is rejected
Considering question b
Given that the original claim is The standard deviation of pulse rates of a certain group of adult males is more than 11 bpm
Then the null hypothesis is 
The reason why the null hypothesis is write like this above is because a null hypothesis expression can not contain only a > or a < but only allows = 
and the alternative hypothesis is 
Now given that the null hypothesis is rejected, it mean that there is sufficient evidence to support original claim
Answer: x=\pi n,\:x=\frac{\pi }{4}+\pi n
Step-by-step explanation:
Answer: wheres the picture
Step-by-step explanation: