The average time of completing a 3-mile course for 600 cross-country students is 44.38 minutes. Assume the data is normally distributed. If the standard deviation of this data is 14.11 minutes, how many students take longer than 1 hour and 12.6 minutes to complete this course? (Round to the nearest integer.)

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

14

step-by-step explanation:

1. supplementary angles

2. acd and bcd

step-by-step explanation:

ok so what's the question?

step-by-step explanation: