Mathematics, 10.02.2021 19:30, lexie7752
Below is the justification for the formula for area of a circle. Which word,
when placed in both blanks, best completes this argument?
• The circumference of a circle is given by the formula C - 287 where ris the
radius.
• If the circle is divided into equally sized sectors, the sectors can be
rearranged to form a shape that approximates a parallelogram
• The base of the parallelogram is half the circumference, or *, and the
height of the parallelogram is n
of the base
• Because the area of a parallelogram is equal to the
and the height, the area is the of Tr andr, or 1/2
• Therefore, the area of a circle is given by the formula r2
a. sum sum
b. quotient quotient
c. product product
d. difference, difference
Answers: 1
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Below is the justification for the formula for area of a circle. Which word,
when placed in both bl...
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