Rational Numbers: The table shows the monthly lowest temperature, in degrees Celsius, in Edmonton.
Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
-14.7 -12.8 -7.2 0.5 5.9 10.1 123 10.6 6.1 -0.8 -8.3 -13.4
You are asked to determine the mean (average) monthly temperature in Edmonton for
that year.
a) In 1-2 sentences, provide a written explanation in your own words, of how to
calculate the average for a set of numbers
b) Calculate the mean monthly temperature. Please include all work and calculations.
Don't forget units! Round to the nearest hundredth.
c) Which months have temperatures below the mean? How do you know?

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.