The equation of a curve is given by y = px2 +qx+r. The line y = x+1 is a tangent to the curve. (i) Showthat(q−1)2 =4p(r−1).
(ii) Given further that the curve has a minimum point at
3 1
− 2 , − 4 , show that
q = 3p and 4r = 9p − 1. Hence, find the values of p, q and r.

step-by-step explanation:

12475909

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

jwjeh; hw; kjhekjhkjhwkejhkw

step-by-step explanation: