Answer:
Observational study
Step-by-step explanation:
There are 3 types of statistical study:
1) Experimental: Under this, any experiment is done on a certain group of population.
2) Observational: Under this study, the events are observed regularly and the record is made.
3) Survey : Under this study, a survey is conducted with a a group of population and the record is made.
According to question, A meteorologist keeps hourly temperature records over the course of several years in order to look for long-term variations, this is an example of <u>observational study</u>.
The best thing I can say is use a online scientific calculator.
Answer: Label the axis with numbers (x: from -10 to +10, y from 0 to 50)
Step-by-step explanation: Enter a dot for each coordinate.
2x + 3y = $134
3x + 2y = $146
2y = 146 - 3x
y = 73 - 1.5x
2x + 3(73 - 1.5x) = 134
2x + 219 - 4.5 x = 134
-1.5x = - 85
x = $56
An adult ticket - $56
A youth ticket - 56 x 2 + 3y = 134
112 + 3y = 134
y = 7.3
$7.3
