Answer:
The null hypothesis is 
Step-by-step explanation:
According to the Centers for Disease Control and Prevention, the proportion of U.S. adults age 25 or older who smoke is .22
This means that at the null hypothesis, it is tested if the proportion is in fact 0.22, that is:
A researcher suspects that the rate is lower among U.S. adults 25 or older who have a bachelor's degree or higher education level.
At the alternative hypothesis, it is tested if the proportion is lower than 0.22, that is:
<span>64 divided by 8 is 8. 8 pints fit in one gallon. She carries 2-gallon jugs, so that's 16 pints. So each day she carries 4 2 gallon jugs to meet her catering business demands.</span>
Answer:
Correct option: (A) Someone with dangerous material that pass through security.
Step-by-step explanation:
Before boarding a flight every person has to pass through airport security.
The security checks every person thoroughly before they are confirmed as safe to go.
The security checks every person for some harmful substances like, weapons, chemical,etc.
If a person is caught with any of these objects the security stops them from boarding the plane.
So if a person is flagged as a risk by the airport security, he/she should have been carrying any kind of harmful substances.
Thus, the correct option is (A).
Answer:
Step-by-step explanation:
The length of the polar coordinates ray is found using the Pythagorean Theorem: ray length = √( (-1)^2 + (-2)^2 ) = √( 1 + 4) = √5
Because both the x- and the y-coordinates here are negative, the ray is in Quadrant III. Measuring the angle counterclockwise from 0°, we get
Ф = 180° + arctan 2/1, or Ф = 180° + 63.43°, or 243.43°
The desired polar coordinates are (2√2, 243.43°)
52 (if id means is and not imaginary number)
