Find the exact value of the expression, if possible. Do not use a calculator.cos-1 
A. - 
B. 
C. 
D. 
Answer: D
You might also like to view...
Solve the problem.A pie-shaped (triangular) lake-front lot has a perimeter of 1500 feet. One side is 200 feet longer than the shortest side, while the third side is 400 feet longer than the shortest side. Find the lengths of all three sides.
A. 100 feet, 200 feet, 300 feet B. 400 feet, 400 feet, 400 feet C. 400 feet, 600 feet, 800 feet D. 300 feet, 500 feet, 700 feet
Determine the number of subsets of the set.A set of days of the week
A. 124 B. 128 C. 256 D. 127
Perform the indicated operation and simplify if possible.
? (8x + 16)
A. 16 B. 24 C. 8 D. 3
Solve.The following data are the number of social network friends for nine random users.76?91?123?63?106?211?84?111?46(a) Find the mean, median, and mode for the data. Round the value of the mean to the nearest whole number, if necessary.(b) A new user opens a social network account starting with 19 friends. Add this data to the data set and find the new mean, median, and mode for the data. Round the value of the mean to the nearest whole number, if necessary.
A. (a) mean: 101, median: 91, mode: no mode; (b) mean: 93, median: 101, mode: no mode B. (a) mean: 93, median: 111, mode: 111; (b) mean: 85, median: 101, mode: 111 C. (a) mean: 93, median: 111, mode: 111; (b) mean: 91, median: 111, mode: 111 D. (a) mean: 101, median: 91, mode: no mode; (b) mean: 101, median: 111, mode: no mode