.In the orthonormal system (O; i⃗,j⃗) below, consider point A(3, −1), vector v⃗(2,1), and straight line (d). Let (d’) be the line of equation y = −2x + 5. 1. Show that A belongs to (d’). 2. Draw the straight line (d’). 3. Write a Cartesian equation of line (d). 4. What is the relative position of the lines (d) and (d’)? Justify your answer. 5. Write the reduced equation of the straight line(D) defined by (A, ⃗v⃗). 6. Deduce that the two lines (D) and (d) are perpendicular. 7. Determine the coordinates of the point of intersection I of the two lines (d) and (D).

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !