(will give brainliest! ) these are correlation questions, and i’m stumped on whether or not my answers are correct, if anyone is good at telling the correlation between these, it would be greatly (just whether or not the graph matches with the correlation coefficient)

The closer to a straight line the higher the coefficient.

r = 1 would be correct.

r = 0.48 should be somewhere between to 0.8 - 0.9

r =-0.49 is about right.

r = -085 should be lower ( -0.4 to -0.5)

r = -0.09 should be 0 ( can't tell which direction the line is supposed to be).

r = 0.88 should be between 0.1 and 0.25

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

answer: 1, 3 and 5 are correct

step-by-step explanation: