Mathematics, 06.08.2021 23:10 nourmaali
The figure above shows a rectangle ABCD and
a quarter of a circle with a radius of 6. If the area
of region I is equal to the area of region II, what
is the value of x, the length of AB?
(A) 3
(D) 271
(E) 4.571
(B) 7
(C) 1.57
Answers: 1
Mathematics, 21.06.2019 19:40, evarod
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 23:30, webbhlharryteach
Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?
Answers: 1
Mathematics, 21.06.2019 23:40, tanviknawale
The function f(x)= -(x+5)(x+1) is down. what is the range of the function?
Answers: 3
The figure above shows a rectangle ABCD and
a quarter of a circle with a radius of 6. If the area
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