Please Help what is the ninth term of the arithmetic sequence a(n)=14 + 2(n-1)?

A. 21
B. 23
C. 30
D. 32

Writing the simplest form of a fraction means the numerator and the denominator have no common factors other than 1.a. trueb. false

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?