The given family of functions, = 1 + 2 cos() + 3sin() , is the general solution of the differential equation ′′′ + ′ = 0 on the interval (−∞ , ∞). Find
a member of the family that satisfies the initial conditions:
() = 0 ; ′() = 2 ; ′′() = −1

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

Anyone know? is appreciated! will mark brainliest if correct!

Based on the diagrams, what is the value of x?