The employees in an insurance company's mailroom are responsible for sorting and delivering the incoming U. S. mail to the correct departments. These employees have been receiving numerous complaints that mail is being delivering to the wrong departments. To better understand these complaints, the mailroom employees recorded the number of these complaints they received each day for the last 20 working days (Monday through Friday for the last 4 weeks). The data, in the order of the last 20 working days, is given below. Week 1 Week 2 Week 3 Week 4 Monday 13 Monday 12 Monday 12 Monday 12 Tuesday 5 Tuesday 6 Tuesday 5 Tuesday 4 Wednesday 14 Wednesday 12 Wednesday 12 Wednesday 9 Thursday 11 Thursday 11 Thursday 9 Thursday 15 Friday 9 Friday 15 Friday 10 Friday 9 Plot these data on a run chart. What conclusion can you make about the number of complaints received over the last 4 weeks?

The answer is the first one

Answer: question no. 1 -a. yes, the sides are in the ratio 2 : 5.question no. 2 -b. 59°question no. 3 -c. angles x and y are remote interior angles.question no. 4 -d. 90°, 45° and 45°question no. 5 -b. mn and qrstep-by-step explanation: question no. 1 -rs : xu = 3 : 7.5 = 2 : 5rt : x? = 6.4 : 16 = 2 : 5st : u? = 6 : 15 = 2 : 5as the ratios of all sides are equivalent, the triangles must be congruent and the sides must be proportional.therefore, the answer is: a. yes, the sides are in the ratio 2 : 5.question no. 2 -in the second diagram, angle b is the only letter not shown. therefore, the number must be equivalent to angle b.if we substitute the value of angle b as being 22° in the first diagram, we can now use the angle sum of a triangle to obtain the value of angle a.angle sum of a triangle = 180°therefore: let angle a = aa + 99 + 22 = 180a = 180 - 99 - 22a = 59°therefore, the answer is: b. 59°question no. 3 -angles x and y don't share the vertex of the triangle with the exterior angle w. remote interior angles don't share a vertex of a triangle with an exterior angle. this means that angles x and y are remote interior angles.therefore, the answer is: c. angles x and y are remote interior angles.question no. 4 -the sum of all interior angles of a triangle must be equivalent to 180°.90°, 45° and 45° are the only set of angle measures that are equivalent to 180°.therefore, the answer is: d. 90°, 45° and 45°question no. 5 -the only pair of sides stated in the options which are corresponding are mn and qr.therefore, the answer is: b. mn and qr.