Mathematics, 08.06.2021 17:00 amcdonald009
Joaquim wants to estimate the number of hairs on his head. He does some research and finds that, on average, people have about 300 hairs per cm2. He decides that half of a soccer ball is roughly equivalent to a person’s scalp area. If an official size 5 soccer ball has a radius of 11 cm, which is the most reasonable estimate for the number of hairs on his head?
A. 3 × 107 hairs
B. 3 × 105 hairs
C. 3 × 104 hairs
D. 3 × 103 hairs
E. 3 × 106 hairs
Answers: 1
Mathematics, 21.06.2019 15:00
Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
Answers: 2
Mathematics, 21.06.2019 21:20
52 cm radius = diameter = area = circumference = circumfer
Answers: 1
Mathematics, 21.06.2019 21:30
Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.
Answers: 2
Mathematics, 21.06.2019 23:10
What is the distance between the points (2, 5) and (5,9)?
Answers: 1
Joaquim wants to estimate the number of hairs on his head. He does some research and finds that, on...
Mathematics, 10.01.2021 14:00
Geography, 10.01.2021 14:00
English, 10.01.2021 14:00
Mathematics, 10.01.2021 14:00
Mathematics, 10.01.2021 14:00
Social Studies, 10.01.2021 14:00
English, 10.01.2021 14:00
English, 10.01.2021 14:00