Problem #3: Solve the given equation for x. (a) log9(3x21) = 7 (b) 15 = 3+2le-5Jr (01mm: %) = 11110 (d) 511m2 11m8 = 111(4x+21) Problem #3(a): |:| Enter your answer symbolically, Pmblem #303): l:l as in these mm Problem #3{c): |:| Problem #301): |:| Separate your answers with a comma. Submit Problem #3 for Grading Problem #3 Attempt #1 Attempt #2 Attempt #3 Your Answer: 3(a) 3(a) 3(a) 3(b) 3(b) 3(b) 3(C) 3(C) 3(C) 3(d) 3(d) 301) Your Mark: 3(a) 3(a) 3(a) 3(b) 3(b) 3(b) 3(C) 3(C) 3(C) 3(d) 3(d) 3(d) Pr0blem #4: Suppose that you invest $4000 at an annual interest rate of 6%, compounded continuously. How long will it take (in years) for your money to (a) double? (1)) triple? Problem #4(a): |:| Round your answer to 2 decimals. Problem #4(b): |:| Round your answer to 2 decimals. Submit Problem #4 for Grading Problem #4 Attempt #1 Attempt #2 Attempt #3 Your Answer: 4(a) 4(a) 4(a) 4(b) 4(b) 4(b) Your Mark: Problem #5: Differentiate the given function. (a)f(x) = x4671 (b) f(x) h1(e_51+12x} Enter your answer as a symbolic examples Enter your answer as a symbolic exampl Submit Problem #5 for Grading Problem #5 Attempt #1 Attempt #2 Attempt #3 Your Answer: 5(a) 5(a) 5(b) 5(b) Your Mark: Problem #6: Find the critical number of f(x} = x61\". (Note: 0 is not a critical number because it is not in the domain of f.) as in these examples Submit Problem #6 for Grading Problem #6 Attempt #1 Attempt #2 Attempt #3 Your Answer: Your Mark: Problem #7: Find the equation of the line that is tangent to the graph of the function f (x) = 111(9x + 6) at the point (O,h1 6). Enter your answer as a symbolic P t . th 1'- _ + 17 Problem #7: :l function of x, as in these u your answer In E orm y _ mx ' exampl but do not include y = in your answer. Submit Problem #7 for Grading Problem #7 Attempt #1 Attempt #2 Attempt #3 Your Answer: Your Mark