Question

10. Simplify the rational expression by rationalizing the denominator.
3 sqrt 160/sqrt 1350x
A) 2 sqrt 15x/15x
B) 3 sqrt 160/1350x
C) 4 sqrt 15x/15x
D) 4/ sqrt 45x


11. Find the mean, median, and mode of the data set. Round to the nearest tenth.
12, 23, 17, 20, 14, 14, 18, 16, 17, 18, 18
A) mean= 15.6, median=17 mode=18
B) mean= 17, median=18, mode=17
C) mean= 15.6, median=18, mode=17
D) mean=17, median=17, mode=18

Answer 1

for the first question, just square the numerator and denominator to rationalize the ratio.

Answer 2

the second one: make sure to order the list from least to greatest integers

Answer 3

mean is the average- so add up all the number and divide it by the total number of numbers in the list

Answer 4

median is the number in the middle of the list....make sure to order the list from least to greatest before doing this

Answer 5

mode is just the number that occurs most in the list.....for example the mode in the following list:
5,5,5,5,2,3
is 5 because it occurs most in the list

Answer 6

5

Answer 7

that was an example mr. and i already gave the answer :)