A company did a survey to compare the popularity of two web browsers. It was found that 75 students used browser A and 40 of tho
se students used browser B also. There were 18 students who did not use browser A but used browser B. There were 7 students who did not use either browser A or browser B.
Using a two-way table, predict the number of students who would use browser B when 300 students participate in the survey.
115
133
162
174
Using a two-way table, predict the number of students who would use browser B when 300 students participate in the survey.
115
133
162
174
2 answers:
Answer:
The correct option is D.
Step-by-step explanation:
It is given that,
The number of students who use browser A = 75.
The number of students who use both browsers A and B = 40.
The number of students who use browsers B but not A = 18.
The number of students who did not use either browser A or browser B = 7.
From the given information, we can make a two way table as shown below.
Total number of students is 100 and 58 of them use browser B.
If 300 students participate in the survey, then the number of students who use browser B is
Therefore the correct option is D.
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Add the exponents and keep the same base. Then reciprocal it and change the sign of the exponent. Then the value of the exponent expression is 0.5.
<h3>What is an exponent?</h3>Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.
The exponent expression is 2³ × 2⁻⁴ can be simplified.
Add the exponents and keep the same base. Then we have
2³ × 2⁻⁴ = 2⁽³⁻⁴⁾
2³ × 2⁻⁴ = 2⁻¹
Then find the reciprocal and change the sign of the exponent.
The value is 0.5.
More about the exponent link is given below.