If m and n are relatively prime integers, then: a) mº(n) + nº(m) = 1 mod(mn) b) т+nmod (mn) c) -1 mod (mn) | a

Flight of a Model Rocket The height (in feet) attained by a rocket t sec into flight is given by the function +3+10t2 + 21t + 5 3 h(t) (t > 0). - When is the rocket rising? (Round your answers to the nearest integer.) О (0, 10) (0, 21) (0, 32) О (10, 21) (21, 32) When is it descending? (Round your answers to the nearest integer.) (0, 10) O (0, 21) O (0, 32) О (10, 21) О (21, 32)

Evaluating a Function Evaluate the difference quotient and simplify the result f(x) = x² - 7x + 3 0 f(x + Ax) - f(x) Ax Need Help? " Ax = 0 Read It

In Exercises 21-30, find all scalars c, if any exist, such that the given statement is true. Try to do some of these problems without using pencil and paper. 21. The vector [2, 6] is parallel to the vector [c, −3]. 22. The vector [№², −4] is parallel to the vector [1, −2]. 23. The vector [c, −c, 4] is parallel to the vector [−2, 2, 20].

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