Answer:
sample variances
Step-by-step explanation:
The pooled variance method is used to estimate the variance of several different population with different means, but are assume to have the same variance.
The weights represent the sample variances.
So the correct answer is
sample variances
Explanation:
1. you subtract 6x to get 4y alone. which will get you -4y=-6x-16
2. then you divide everything by -4 to get y completely alone.
This will get you the answer of y=6/4y+4
Answer:
C and D
Step-by-step explanation:
A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient.
Answer:
81
Step-by-step explanation:
the answer is 81, just out this in the solution
Student programs = 12,000 x 0.5 = 6000
teacher programs = 12000 x 0.23 = 2760
school supplies = 12000 x 0.17 = 2040
technologies = 12000 x 0.10 = 1200
1. 6000 - 2040 = 3960 this is TRUE
2. 6000 - 1200 = 4800 this is FALSE
3. 6000 + 2760 = 8760 ( approximately 8800) this is TRUE
4. teacher programs = 2760 this is FALSE
5. FASLE
1 and 3 are correct answers
