An astronaut on the moon throws a baseball upward. The astronaut is 6ft 6in tall, and the initial velocity of the ball is 50ft per sec. The height s of the ball is in feet is given by the equation s= -2.7t^2 +50t +6.5, where t is the number of seconds after the ball was thrown.

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.