The average score for a biology test is 77 and the standard deviation is 8. which percent best represents the probability that any student scored between 61 and 93 on the test?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?