Add {-6 -2 2}+ {-3 2 1}

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

The area of square garden is 300m squared. how long is the diagonal?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?