Prove that sin^2 pi/6 + cos^2 pi/3 - tan^2 pi/4 = - 1/2

Selecting one professor to be a member of the university senate and then selecting one professor from the same group to be a member of the curriculum committee is a a. sampling with replacement, b. sampling without replacement

Indicate the number of solutions of each equation. No Solutions Exactly One Solution Infinite Solutions 16a + 1 = 11 (a - 4)

A local charity is sponsoring an outdoor rock concert to raise money for children's cancer research. To accommodate as many patrons as possible, bleachers are being imported so that all the fans will be seated during the performance.

All my digits are different. The sum of my digits is 24. Rounded to the nearest 100, I am 1000, but rounded to the nearest 10. I am 990. what number am i?

Nine less than a number algebraic expression

Of v (x) is the set of all real values except 2. What are the The domain of u (x) is the set of all real values except restrictions on the domain of () (x) ? u (x). and v (x) 2 x 0 and x cannot be any value for which u (x) - 2 x.

If 24 students took a test and 18 passed how much percent passed?

A 9 kg bag of mangoes for $12 what is it per kg

Write an equivalent expression. (-11f) - 2 (-f - 4) - 10

The price of a tent was decreased by 15% and sold for $76.49. What was the orginal price of tent in dollars