Answer:
= 1/2
=
* 
Step-by-step explanation:
plug 1 into
=1/2(4/3)^n−1 to find 
=1/2(4/3)^1−1
= 1/2 (4/3)^0
= 1/2 * 1
= 1/2
=
* r where r is the ratio
since (4/3) is being taken to an exponent, (4/3) is r
=
* 
Variance is the average of the square of the differences of each data with the mean. To calculate for the variance, we first calculate for the mean. Then, we subtract each data with the mean. Next, each difference would be squared and added. The resulting value would be divided on how many data are used. We calculate as follows:
Mean = <span>9 + 7 + 6.5 </span>+ 7.5 + 7 + 8 + 5 + 6 + 7.5 + 8 / 10
Mean = 6.4
Squared of the sum of the differences = (9-6.4)^2 + (7-6.4)^2 + (6.5-6.4)^2 + (7.5-6.4)^2 + (7-6.4)^2 + (8-6.4)^2 + (5-6.4)^2 + (6-6.4)^2 + (7.5-6.4)^2 + (8-6.4)^2 = 17.15
Variance = 17.15 / 10 = 1.715
Well the answer is A. 113-2tsqr 17t
Answer:1/64
Step-by-step explanation: I got it right
Answer:
x = 1/5 or x=0.2
Step-by-step explanation:
isolate the variable by dividing each side by factors that dont contain the variable.