Simplify, when x = 3: −2(3x−4)+6(2x−7)

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?