Find the missing lengths in these problems below, in which ΔABC ~ ΔDEF
1. AB = 8, BC - 14; DE = 12, EF = ?
2. AB = 4, AC = ?; DE = 1, DF = 9
3. AB = 12, AC = 18, BC = 15; DE = 8, DF = ?, EF = ?

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?