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3 years ago

1. What is the measure of the angle? A) -280° B) -260° C) 110° D) 80°

Mathematics

1 answer:

expeople1 [14]3 years ago

6 0

Step-by-step explanation:

the x and y-axis are always perpendicular to each other. Meaning that the angle between the x an y-axis is always 90 deg

the angle here shows that it starts on the x-axis in quadrant 1 and goes counterclockwise to the y-axis

since it doesnt go beyond the first quadrant, it means that it must be less than 90 deg

so it must be 80 deg

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A survey of 163 persons was conducted at TCC, and it was found that 90 persons carried a cell phone, 81 persons carried a tablet

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1. The number of people who carried a cell phone or a tablet is <u>128</u>.

2. The probability that a person carries a cell phone or a tablet is <u>78.5%</u>.

3. The number of people who carried neither a cell phone nor a tablet is <u>35</u>.

4. The probability that a person carried neither a cell phone nor a tablet is <u>21.5%</u>.

5. The number of people who carried a cell phone only is <u>43</u>.

6. The probability that a person carried a cell phone only is <u>26.4%</u>.

7. The number of people who carried a tablet but not a cell phone is <u>38</u>.

8. The probability that a person carried a tablet but not a cell phone is <u>23.3%</u>.

<h3>Data and Calculations:</h3>

The sample size of the survey = 163

The number of persons who carried a cell phone = 90

The number of persons who carried a tablet computer = 81

The number of persons who carried both a cell phone and a tablet = 43

1. The number of people who carried a cell phone or a tablet is 128 (90 + 81 - 43).

2. The probability that a person carries a cell phone or a tablet is 78.5%. (128/163).

3. The number of people who carried neither a cell phone nor a tablet is 35 (163 - 128).

4. The probability that a person carried neither a cell phone nor a tablet is 21.5% (35/163).

5. The number of people who carried a cell phone only is 43.

6. The probability that a person carried a cell phone only is 26.4%(43/163).

7. The number of people who carried a tablet but not a cell phone is 38 (81 - 43).

8. The probability that a person carried a tablet but not a cell phone is 23.3% (38/163).

Learn more about probability at brainly.com/question/13604758

#SPJ1

<h3>Question Completion:</h3>

1. How many people carried a cell phone or a tablet?

2. What is the probability that a person carries a cell phone or a tablet?

3. How many people carried neither a cell phone nor a tablet?

4. What is the probability that a person carried neither a cell phone nor a tablet?

5. How many people carried a cell phone only?

6. What is the probability that a person carried a cell phone only?

7. How many people carried a tablet but not a cell phone?

8. What is the probability that a person carried a tablet but not a cell phone?

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2 years ago