Which function describes the graph below? F(x)=6cos(x)
f(x)=3cos(x)+3
F(x)=6sin(x)
F(x)=3sin(x)+3

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

3x + 4y = 5 x- 3y = -7 solve by substitution

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?