You're at a clothing store that dyes your clothes while you wait. The store offers 4 different articles of clothing and 3 colors.
If you randomly choose the article of clothing and the color, which of these diagrams can be used to find
all of the possible outcomes?

Can you me find the missing length. i attached an image.

What is the equation of the parabola with focus (-1,-1) and directrix y=1?

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95