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Mathematics, 21.06.2019 13:00
Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .
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Mathematics, 21.06.2019 17:00
Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?
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Mathematics, 21.06.2019 17:30
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 1
Find the value of [tex] \cos\left(\dfrac{\pi}{9}\right)+\co s\left(\dfrac{3\pi}{9}\right)+\cos\ left...
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