Answer:
C
Step-by-step explanation:
Answer:
For mean
To show the mean of height measures for 40 students, you need to write-out exactly 40 heights into a calculator and add them up.
Then divide that total number by 40.
Step-by-step explanation:
Eg for 4 students
5 , 5.1, 5.2, 5.7 = 21ft
21/4 = 5.25ft.
Apply the same method but use 40 measures in addition for calulator or long addition. Then divide by 40.
Answer:
45
Step-by-step explanation:
= (10!) ÷(8!) (10-8)!
(10 × 9)÷2 = 45
Answer:
[6+√-64 ]x 3-√-16
6+8 x3+4
14 x 7
=98
Step-by-step explanation:
Answer:
-0.5
Step-by-step explanation:
- slope=rise/run or y/x in other words(y2-y1/x2-x1)
- (y2-y1) is 3-2 so y2-y1=1
- (x2-x1) is 3-5 so x2-x1= -2
- -1/2 or -0.5 would be the slope.
