This question is from apex: algerba 1 sem 2: 3.5.3 quiz ( ! ) whats is the result of substituting for y in the bottom equation? y=x-3 y=x2+2x-4 (answers: ) a. x-3=x2+2x-4 b. y=(x-3)2+2(x-3)-4 c. y=x2+2x-4-(x-3) d. (x-3)=x2

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

i dont get the question

step-by-step explanation: