Which of the following is an obtuse triangle? Triangle A
Triangle B
Triangle C
Triangle D

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Vertical angles must check all that apply