Mathematics, 22.01.2021 17:00 neariah24
Martha’s text message plan costs $15.00 for the first 1000 text messages sent plus $0.25 per text over 1000 sent. Let C(t) represent the cost of sending t text messages over 1000. Sketch a graph of this relationship, and find and interpret the C(t)-intercept.
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Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary
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Solve for x and y: 217x + 131y = 913; 131x + 217y = 827
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The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?
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