For what values of x and y are the triangles shown congruent by HL? Select one:
A. x = 1, y = 4
B. x = 4, y = 1
C. x = 2, y = 4
D. x = 1, y = 3

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables