What is 2(1-x)>-2(1+x)?

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²