B. an internal retaining ring
hope this is the correct one
To find the mean of the data set you would add all the number of the data set (2,2,2,3,4,4,4,4,6,6,7,7,7,8 )-data set based on dot plot then add all number together which would give you 75 then you would divide by the amount of numbers (15) and 75/15=5 so your mean would be 5
Answer: She can randomly survey 50 seventh-graders in the school.
Step-by-step explanation: To get the best result without wasting to much time means she cannot afford to survey every student. To receive the best results it should be unbiased so random is the way to go. Randomly surveying 50 girls in her school does not guarantee that those girls are all seventh graders so the best answer is She can randomly survey 50 seventh-graders in the school.
Answer:
31 people
Step-by-step explanation:
think of it like a line,
first person at zero then add 3 feet per person so...
1 + 90/3 = 31 people
kinda funny that the problem isnt accounting for the size of the people
Answer:
Step-by-step explanation:
let distance between farmhouse and road is 2 km
From diagram given
p is the distance between road and past the intersection of highway
By using Pythagoras theorem
differentiate wrt t
we get
putting p = 3.7 km
