'"'!!!.');:/-"'b!?,(((

5. Consider f (x) = cosh x. a. Evaluate and simplify f (2) by hand. Simplify the answer. b. Give the answer as a decimal, rounded to three decimal places. 6. A cable hangs between poles at x = 120 feet. Its height is modeled by f (x) = 20 cosh (*) - 2. Find the slope of the cable at x = -5 feet. Give a decimal answer rounded to the nearest thousandth. 7. Determine whether the Mean Value Theorem applies to f (x) = x3 - 3x + 2 on the interval (1,4). If it does, find all values of c that satisfy its conclusion. 8. Determine whether the Mean Value Theorem applies to f (x) = _ on the interval (0,10). If it does, find all values of c that satisfy its conclusion