When n is small (less than 30), how does the shape of the t distribution compare to the normal distribution? a. it is taller and narrower than the normal distribution. b. there is no consistent relationship between the t distribution and the normal distribution. c. it is almost perfectly normal. d. it is flatter and more spread out than the normal distribution?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Abdul is making a map of his neighborhood he knows the following information: his home, the middle school, and high school are all on the same street. his home, the elementry school, and his friends house are on the same street. the angle between the elementary school, middle school, and his home is congruent to the angle between his friends house, the high school, and his home. what theorem can abdul use to determine the two triangles are similar? a- side side side similarity theoremb- angle angle similarity theoremc- corresponding parts of similar triangles are congruentd- pieces of right triangles similarity theorem