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a large concrete water pipe is being laid underground. the pipe has a diameter of 24 inches and is laid in 40 foot sections. how many cubic feet of water does each section hold? express your answer in terms of pi. show all calculations.

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The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation

3. simplify. 312⋅312 4. rewrite n√xm using a rational expression.