In March, a share of stock was worth $55. Six months later the value of the stock decreased by 7.2%. Find the final value of the stock.

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

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.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels