Write and simplify an expression for the perimeter of a triangle 4a-2b+9a-4+7a+3

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Corresponding angles are a. always b. sometimes c. never congruent