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Mathematics 12 Online
OpenStudy (anonymous):

What is the missing term, x, in the pattern? 5, x, 45, –135, 405 A. –15 B. –9 C. 10 D. 15 I've ALWAYS been bad at this type of math, seeing as I'm a slow learner and tend to forget about a lot of stuff. Please help? :(

ganeshie8 (ganeshie8):

hint : 45(-3) = -135 -135(-3) = 405

ganeshie8 (ganeshie8):

so each next term is getting multiplied by -3 eh ?

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