1.The diagonals of a rectangle are congruent (always, sometimes or never). 2.The diagonals of a parallelogram are perpendicular (always sometimes or never)

3.a parallelogram is a rhombus.(always sometimes or never)

4.A rhombus is a parallelogram.(always, sometimes, or never)

5. The diagonals of a rhombus bisects each other. (always, sometimes, or never

6.A rhombus is equilateral. (always, sometimes, or never

7.A rectangle is a kite.

(always, sometimes, or never

Which angle of rotation is an angle of rotational symmetry for all figures?

Atotal of 505 tickets were sold for a school play they were either adult tickets or student tickets they were 55 more student tickets so than adult tickets how many adult tickets were sold ?

Abottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. the water bottling company’s specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. a random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon a. construct a 99% confidence interval estimate for the popula-tion mean amount of water included in a 1-gallon bottle. b. on the basis of these results, do you think that the distributor has a right to complain to the water bottling company? why? c. must you assume that the population amount of water per bottle is normally distributed here? explain. d. construct a 95% confidence interval estimate. how does this change your answer to (b)?