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Mathematics, 21.06.2019 13:30
Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)
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Mathematics, 21.06.2019 16:50
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
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Mathematics, 21.06.2019 17:00
Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.
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Mathematics, 21.06.2019 18:00
Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?
Answers: 1
Quadratics may have two x-intercepts. *...
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