The table below shows the number of students absent from a college on particular days in a semester.
Day/Frequency
Sun
96
Mon
76
Tue
83
Wed
99
Thu
106
Total
460
Use chi-square goodness of fit test to test the claim that the absence is distributed equally among
the days at 0.05 level of significance.

How do you find the area of a triangle

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?