Первая труба наполняет бассейн за 10 часов, а вторая труба за 12 часов. Какая часть бассейна останется не наполненной после 4 часов совместной работы двух труб?

Which expression gives the area of the triangle shown below

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.

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air