A₆ =12
a₇ = ?? = x
a₈ 27
In this case x is the geometric mean & as per the formula
geometric mean of 2 numbers =√(a₆ * a₈) = √(12*27)
& x=18.
Proof:
Find the common ratio between a₇ & a₆ ==> = ( x) / 12
now find the common ration between a₈ & a₇ ===> =27 / (x)
x/12 = 27/x ===> x² = 12*27 ==> x² = 324 & x =√324 = 18
Should be simple:
Let's take this one at a time.
2x(x-3y)
You'd get:

for the first one.
2nd one:
5y(x-3y)
you'd get:

Put them both together:

Combine like terms.
Your Answer:
Answer:
6+1 =7
Step-by-step explanation:
therefore 7 is answer
2 miles-12 min.
3 miles- 18min
4 miles-24 min
5 miles-30 min
3 miles- 18
4 miles-24
5 miles-30
6 miles-36
Yes they are the same
A confidence interval tells us how many percents we are confident about the range of a parameter. In this problem, <span>a 95% confidence interval for the mean number of hours spent relaxing or pursuing activities they enjoy was (1.38, 1.92). That means we're 95% confident that the Americans spend from 1.38 hours to 1.92 hours per day on average relaxing or pursuing activities they enjoy. In other words, 95% of the samples of the same size would have a mean number of hours relaxing or pursuing activities they enjoy between 1.38 to 1.92.</span>