A curve in the xy-plane is defined by the equation x3+y2−12x+16y=28. Which of the following statements are true? 1. At points where x=−2, the lines tangent to the curve are horizontal.
2. At points where y=−8, the lines tangent to the curve are vertical.
3. The line tangent to the curve at the point (−1,1) has slope 12.

Which of the following statements concerning the effects of happiness is not true? select the best answer from the choices provided feelings of happiness generally lead individuals to demonstrate less care toward others. happy individuals are generally more playful than individuals who are not. research has linked levels of happiness to increases in creative problem solving. happiness, along with love, has been found to provoke prosocial behaviors.

What was love canal? what was the significant hazardous waste event that happened and when did it occur?

Dr. williams conducted a survey in the mall, measuring the shopping habits of people ages 15, 25, 35, 45, and 55, with 10 people in each group. which of the following best describes her study? an experiment a cross-sectional study a case study a longitudinal study a double-blind study