8. The scatter plot shows a hiker's elevation above sea level over time. The equation of the trend
line shown is y = 8.77x + 686. To the nearest
whole number, predict what the hiker's elevation
will be after 145 minutes.
Hiker's Elevation
2,000
1,500
Elevation (ft)
000
500
0
30 60 90 120
Time (min)

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.