What is the forecast for period 16 using the three-period weighted method? (weights are t=0.5, t-1=0.4 and t-2=0.1) a. less than or equal to 890 b. greater than 890 but less than or equal to 900 c. greater than 900 but less than or equal to 910 d. greater than 910 but less than or equal to 920 e. greater than 920?

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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