Equations and Inequalties: Tutorial 21 of 28
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The square of a number, x. is 16 less than eight times the number. What is the number?
Type the correct answer in the box. Use numerals instead of words.
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The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]