Asample of 18 observations taken from a normally distributed population produced the following data:
28.5, 27.3, 25.3, 25.1, 31.1, 23.4, 25.5, 24.4, 28.1, 37.5, 23.6, 28.7, 27.6, 25.4, 27.5, 25.5, 22.7, 22.6

a. what is the point estimated μ?
b. make 95% confidence interval for μ
c. e=

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

In δabc shown below, ∠bac is congruent to ∠bca: triangle abc, where angles a and c are congruent given: base ∠bac and ∠acb are congruent. prove: δabc is an isosceles triangle. when completed (fill in the blanks), the following paragraph proves that line segment ab is congruent to line segment bc making δabc an isosceles triangle. (4 points) construct a perpendicular bisector from point b to line segment ac . label the point of intersection between this perpendicular bisector and line segment ac as point d: m∠bda and m∠bdc is 90° by the definition of a perpendicular bisector. ∠bda is congruent to ∠bdc by the definition of congruent angles. line segment ad is congruent to line segment dc by by the definition of a perpendicular bisector. δbad is congruent to δbcd by the line segment ab is congruent to line segment bc because consequently, δabc is isosceles by definition of an isosceles triangle. 1. corresponding parts of congruent triangles are congruent (cpctc) 2. the definition of a perpendicular bisector 1. the definition of a perpendicular bisector 2. the definition of congruent angles 1. the definition of congruent angles 2. the definition of a perpendicular bisector 1. angle-side-angle (asa) postulate 2. corresponding parts of congruent triangles are congruent (cpctc)

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air