The figure below shows a trapezoid, abcd, having side ab parallel to side dc. the diagonals ac and bd intersect at point o.

if the length of ao is double the length of co, the length of dc is

a. half of the length of ab

b. one-fourth the length of db

c. double the length of ao

d. equal to the length of ob

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y