Use the Pythagorean theorem to find the unknown side of the right triangle.
A. 
B. 
C. 13
D. 169
Answer: C
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (cosh t)i + (sinh t)j + tk
A. a = (-sinh t)T + N
B. a = (
sinh t)T + N
C. a = (- 
sinh t)T + N
D. a = (sinh t)T + N
Solve the problem.A simple exercise machine can be constructed by mounting a stiff spring securely to a wall and attaching a "T" handle to the free end of the spring. The arms can be exercised simply by pulling the "T" handle towards the torso. For a particular spring, the stretch distance is related to the work exerted by the equation x = 
, where W is the work exerted in joules and x is the stretch distance in cm. How far will you stretch the spring if you exert 669 joules of work? Round your answer to three decimal places.
A. 0.134 cm B. 0.089 cm C. 0.016 cm D. 0.125 cm
Multiply. Write the answer as an improper fraction as needed.
A. 
B. 
C. 
D. 
Graph.f(x) = (x - 3)2 + 4
A. 
B. 
C. 
D. 