Express 4 cos 14° sin 2° sin 16° as a sum or difference of trigonometric expression! *HELP!!

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.