I CAN HELP YOUUUUUUUUUUUUUUUUUU!!!!!!!!!!!!!!!!!!1
lets distribute 7(x+3)
so 7(x)+7(3)
7x+21 or b
yay :)
Wait I know u still need the answer or not anymore
![\left( \frac{27x^3}{8y^9}\right)^ \frac{5}{3} \\\\\\ =\left( \frac{(3x)^3}{(2y^3)^3}\right)^ \frac{5}{3} \\\\\\ = \frac{(3x)^{3 \times \frac{5}{3} }}{(2y^3)^{3 \times \frac{5}{3} }} \\\\\\ =\frac{(3x)^5}{(2y^3)^{5 }} \\\\\\ =\frac{243x^5}{32y^{15}}](https://tex.z-dn.net/?f=%5Cleft%28%20%5Cfrac%7B27x%5E3%7D%7B8y%5E9%7D%5Cright%29%5E%20%5Cfrac%7B5%7D%7B3%7D%20%20%5C%5C%5C%5C%5C%5C%20%3D%5Cleft%28%20%5Cfrac%7B%283x%29%5E3%7D%7B%282y%5E3%29%5E3%7D%5Cright%29%5E%20%5Cfrac%7B5%7D%7B3%7D%20%5C%5C%5C%5C%5C%5C%20%3D%20%20%5Cfrac%7B%283x%29%5E%7B3%20%5Ctimes%20%20%5Cfrac%7B5%7D%7B3%7D%20%7D%7D%7B%282y%5E3%29%5E%7B3%20%5Ctimes%20%20%5Cfrac%7B5%7D%7B3%7D%20%7D%7D%20%5C%5C%5C%5C%5C%5C%20%3D%5Cfrac%7B%283x%29%5E5%7D%7B%282y%5E3%29%5E%7B5%20%7D%7D%20%5C%5C%5C%5C%5C%5C%20%3D%5Cfrac%7B243x%5E5%7D%7B32y%5E%7B15%7D%7D)
Now, If the exponent was negative like you asked....
<u>Supposing 60 out of 100 scores are passing scores</u>, the 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).
- The lower limit is 0.5.
- The upper limit is 0.7.
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of
.
60 out of 100 scores are passing scores, hence ![n = 100, \pi = \frac{60}{100} = 0.6](https://tex.z-dn.net/?f=n%20%3D%20100%2C%20%5Cpi%20%3D%20%5Cfrac%7B60%7D%7B100%7D%20%3D%200.6)
95% confidence level
So
, z is the value of Z that has a p-value of
, so
.
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).
- The lower limit is 0.5.
- The upper limit is 0.7.
A similar problem is given at brainly.com/question/16807970
Answer:
4.46
Step-by-step explanation:
(11.5 + x) + 5% = 16.8
11.5 + x = 16.8 - 5%
x = (16.8 - 5% ) - 11.5
x = 15.96 - 11.5
x = 4.46