Solve the equation. Write the solution set with the exact values given in terms of common or natural logarithms. Also give approximate solutions to 4 decimal places. 113+4x _ 74x+3 O There is no solution, {}. O The exact solution set is XA XUse the model A = Pe"' or A = P 1 + , where A is the future value of P dollars invested at interest rate y compounded continuously or n times per year for * years. $18,000 is invested at 3% interest compounded monthly. How long will it take for the investment to double? Round to the nearest tenth of a year. It will take approximately years for the investment to double. X 5MI Use the model A = Pe' or A = P , where A is the future value of P dollars invested at interest rate / compounded continuously or n times per year n for t years. If $4000 is put aside in a money market account with interest compounded monthly at 2.7%, find the time required for the account to earn $1000. Round to the nearest month. It will take approximately years and months for the account to earn $1000. X 5_12 1 I 1 The formula L = 10 log() gives the loudness of sound L (in dB) based on the intensity of sound I (in W m'). The value 10 =10 W m'" is the minimal 10 threshold for hearing for midfrequency sounds. Hearing impairment is often measured according to the minimal sound level (in dB] detected by an individual for sounds at various Frequencies. For one frequency, the table depicts the level of hearing impairment. Categoryr Loudness (dB) Mild 26 5 I. g 40 Moderate 4-15)! 353 Moderately severe 56 if. :1 70 Severe 71 5 I. g 90 Profound I } 90 Determine the range that represents the intensity of sound that can be heard by an individual with severe hearing impairment. Write your answers in scientic notation. Round your answers to two decimal places, if necessary. The range that represents the intensity of sound that can be heard by an individual with severe hearing impairment is _ _ _ :l W m' 5 I 5 W m