Mathematics, 07.10.2021 08:10 cierramcdonald
each question on a multiple-choice exam has four choices. one of the choices is correct, worth four points. another choice is wrong but carries partial credit of one point. the other two choices are wrong and worth negative one point. if a student picks answers at random, what is the expected value of his or her score for a problem?
Answers: 3
Mathematics, 21.06.2019 20:20
Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)
Answers: 3
Mathematics, 21.06.2019 21:10
The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25
Answers: 2
Mathematics, 21.06.2019 21:40
The tile along the edge of a triangular community pool needs to be replaced? ?
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Mathematics, 21.06.2019 22:00
Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false
Answers: 1
each question on a multiple-choice exam has four choices. one of the choices is correct, worth four...
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