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The variable z is varies directly with x. When x is 20, Z has the value 300. What is the value of z When X= 26 ? Organic chem reaction? Complete the reaction? (CN in the end product-please look at pic) Thank you? What percentage of integers in all of numbarland end in a string of 0's in the least significant digits.? How to find the frequency of the fundamental of a 1.5 meter long string that weighs 3.3 grams that has a tension of 86N? Let the function y be defined by y (x) = x \sin (x) on [- \pi, \pi]. The minimum value of the function is?