I have two three-digit numbers and one four-digit number. Between them, they use each of the digits 0 to 9 exactly once. The four-digit number is
the sum of the other two numbers. Of the 2 three-digit numbers, one has
one even digit and the other has two even digits. The four-digit number
has two even digits. (Zero is an even digit ). What is the four digit
number?
I

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.