23 is one of the answers, and -23, because negative times negative is positive.
Hope this helps and have a nice day:)
The rate that you are walking at is 100 meters per minute. In two kilometres there are 2000 meters. It takes 10 min to walk one kilometre. Therefore the answer is 20 minutes. Just divide 2000 by 100 to get the time
Answer:
3) 361/11
4) 51
Step-by-step explanation:
for both problems, they give you the length of the segment so you just add both of the segments equal to the length of the whole segment. then for whatever you find as x, plug it into the equation.
ex. 7x+1+4x-3=42
or
5x-8+7x-12=10x-2
Answer:
Step-by-step explanation:
Hello!
What you want to test is if there is a difference between the number of courses taken by students of different years, you can determine 4 populations of students:
Population 1: Freshmen
Population 2: Sophomores
Population 3: Juniors
Population 4: Seniors
To each population you measured the study variable, setting 4 different variables. To compare these variables the best way is to make one test where you compare the four populations at the same time, so the hypothesis is:
H₀: μ₁ = μ₂ = μ₃ = μ₄
H₁: At least one of the population means is different from the others.
The most appropriate test to use to compare the population mean of the 4 groups is an ANOVA.
I hope you have a SUPER day!
