Mathematics, 25.06.2019 08:00, babyphoraaaaa

How is the graph of y=2x^2+3 different from the graph of y=x^2-9x+20 shown below?

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Mathematics, 21.06.2019 18:30, lionscoachjose

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

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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.

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Mathematics, 21.06.2019 20:00, emilysambrano2

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite

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Mathematics, 22.06.2019 01:30, alinamartinez9p752cj

Which of the following statements is a true conclusion that can be made from the scaled bargraph?