Mathematics, 23.11.2019 23:31 rubencharomarti
Aphotographer wants to capture polaris, the north star, and the surrounding stars without capturing any “star trails” caused by the rotation of the earth. he needs to use a long exposure (keep the shutter open for an extended period of time) to ensure that the stars show up bright and clear, but he will need his camera to rotate at the same rate as the earth to prevent the star trails from appearing in the photos. stars appear to rotate about polaris at a rate of 1 4 ° per minute. you can use this rate to write and solve equations. the photographer says that the stars will rotate a total of 15° while his camera shutter is open. the equation 1 4 s=15 , where s is the length of time in minutes the shutter remains open, represents this situation. how long will the photographer’s camera shutter be open?
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Mathematics, 21.06.2019 18:00
The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?
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Mathematics, 21.06.2019 19:00
Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain
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Mathematics, 21.06.2019 20:30
Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.
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Mathematics, 21.06.2019 22:40
Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x
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Aphotographer wants to capture polaris, the north star, and the surrounding stars without capturing...
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