Verify the identity.

sin (x + y) - sin (x - y) = 2 cos x sin y

15/f greater than or equal 5. If f=

donnie planta 1/6 of her garden with flowers and 2/6 of her garden with fruit trees ... the rest if her garden is planted with vegetables ... what fraction of donnies garden is planted with vegetables?

Central school is hosting a "central has talent" show. They will award various prizes for the best 3 acts in the show. First place wins the most money, and each subsequent place after 1st wins $50 less than the previous place.

How to calculate density for a 6th grader

16 students went on a weeklong hiking trip they brought with them 320 cookies what is the ratio of cookies to students

Use the relationship between x and y to find the time it takes for the runner to reach the school.

What is a solution of a linear equation in two variables?

You and your friend sell lemonade. You get 1/3 of the total money. Your friend gets $20 less than the total amount collected. Write a system and solve to find how much each of you made.

Paul says that in the number 6367 one 6 is 10 times as great as the other 6. is correct? explain why or why not.

A fair die will be rolled 9 times. What is the probability that 4, 5, or 6 is rolled exactly 2 times? Round your answer to four decimal places.