How much sleep do high school students at Alain LeRoy Locke get on a typical school night? An interested student designed a survey to find out. To make data
collection easier, the student surveyed the first 100 students to arrive at school
on a particular morning. These students reported an average of 7.2 hours of
sleep on the previous night. What kind of sampling is this? How can it lead to
bias? Is 7.2 a low or high estimate than the true average amount of sleep? Answer
ALL the questions. *

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12

How many shares did he have to begin with?

40 mph is a possibility of a speed