A group of 55 pupils were asked if they owned a phone or a tablet.
11 people are known t...
Mathematics, 26.04.2020 16:25 bbthomas
A group of 55 pupils were asked if they owned a phone or a tablet.
11 people are known to own both
18 said they only owned a tablet
34 said they owned at least a phone
A student is picked at random, what is the probability that the student doesn’t have a phone or tablet? Give your answer as a fraction in its simplest form.
Answers: 3
Mathematics, 21.06.2019 16:30, leenzazou98241
The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
Answers: 1
Mathematics, 21.06.2019 17:20, bsheepicornozj0gc
What is the reflection image of (5,-3) across the line y = -x?
Answers: 1
Mathematics, 21.06.2019 19:20, solobiancaa
Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?
Answers: 1
History, 29.06.2019 00:40
Mathematics, 29.06.2019 00:40
History, 29.06.2019 00:40
History, 29.06.2019 00:40
Social Studies, 29.06.2019 00:40
History, 29.06.2019 00:40
Computers and Technology, 29.06.2019 00:40
Computers and Technology, 29.06.2019 00:40
Chemistry, 29.06.2019 00:40