PLEASE HELP ME FIND THE AREA
2 answers:
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Answer:
Step-by-step explanation:
To find the slope of the perpendicular line, we must first find the slope of the given line.
This can be done by rearranging the equation into the slope intercept form.
2x +3y= -3
3y= -2x -3
y= -⅔x -1
Thus, the slope of the given line is -⅔.
The slope of the perpendicular line is the negative reciprocal of the given line.
Slope of perpendicular line
What is slope-intercept form?
- y= mx +c, where m is the slope and c is the y-intercept
- This can be achieved by making y the subject of formula
Negative reciprocal
- The reciprocal of m is
- The negative reciprocal of m is
Negative reciprocal of -⅔
Answer: Simple random
Step-by-step explanation:
Since , the company randomly selects customers and asks them about their level of satisfaction with the company.
So the chances for each customer to get selected are equal.
This technique of sampling is known as simple random sampling .
Definition:
- A simple random sampling is a sampling technique in which the researcher randomly selects individuals from the whole population of interest for his sample.
Here , the probability for each individual to get selected is equal as , where N = Population size.
In the rest of sampling method (convenience , systematic , stratified and cluster) , the individuals in the population do not have equal chances to get selected. .