Given csc A = 158 and that angle A is in Quadrant I, find the exact value of cos A in simplest radical form using a rational denominator.

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

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