.
Which equations for the measures of the unknown
angles x and y are correct? Check all that apply.
x=cos-1(a/c)
x=sin-1(c/b)
x= tan-1(c/a)
y=sin-1(a/c)
y = cos-1(c/b)

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

8.74 rounded to the nearest whole number