Which of the following transformations does not preserve congruence?
F. (x, y) → (-x, -Y)
G. (x, y) = (-y, -x)
H. (x, y) = (x + 9.y + 9)
J. (x, y) → (9x, 9y)

Can you draw an isosceles triangle with only one 80 degree angle?

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.

Which number produces a rationale number when multiplied by 1/5