A store employee conducted a survey of 325 randomly selected customers. According to the survey, 212 of the customers often use
1 answer:
The number of people out of 2000 expected to use the app will be 1300.
<h3>What is a survey?</h3>A survey is a research method used for collecting data from a predefined group of respondents to gain information and insights into various topics.
It is given that:-
A store employee conducted a survey of 325 randomly selected customers. According to survey 212, customers often use the app to shop.
We need to find the data for 2000 people who visited the store.
So the percentage of the people who are using the app will be calculated as:-
So the number of the people out of 2000 will be:-
Hence the number of people out of 2000 expected to use the app will be 1300.
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As given by the question
There are given that the vector:
Now,
From the formula to find the unit vector in same direction is:
Then,
Then,
Then,
Rationalize the denominator:
So,
Hence, the unit vector is shown below:
Answer:
The sheet should be turned up 7.5cm on each side to obtain maximum volume.
Step-by-step explanation:
If we make a rectangular eavesdrop, by bending the sheet along dotted line, then.
Height of eaves trough = x cm
Length of eaves trough = 600 cm
Width of eaves trough = (30 - 2x) cm
We know that Volume is given by:
V = Length · Width · Height
V = (x)(30 - 2x)(600)
V = -1200x² + 18000x
To maximize the volume, we take the derivative and put it equal to zero.
