Answer:
10.375
Step-by-step explanation:
To find the mean, you need to add up all of the numbers and then divide by the amount of numbers.
4 + 5 + 8 + 12 + 12 + 13 + 14 + 15 = 83
83 ÷ 8 = 10.375
Answer:
d. none of these
Step-by-step explanation:
Answer:
1. Two angles are called complementary when their measures add to 90 degrees.
2. Two angles are called supplementary when their measures add up to 180 degrees.
Step-by-step explanation:
Answer:
-2/3
Step-by-step explanation:
Since slope is just rise over run, find the y intercept and see how far it is from the x axis. If it goes down and is above \the x axis, then it is negative and if it is under the x axis, then it is positive. Then count how far the x intercept is. Same concept as the y intercept. Then, you put it as a fraction (y goes on top of x) and simplify to get your slope.
9 x 5 x 2 = 90
9 x 3 x 2 = 54
3 x 5 x 2 = 30
90 + 54 + 30 = 174
So the answer is 174