5. Solve for X in the following equation: 8 + 3x = 35 b. x= 10 6. Which equation below will produce a decay curve? a. x= 8 C. x= 5 d. x= 3 y = 2(4)* y=3) a. y = 3" - 4 b. d. 7. The half-life of 14C is 5, 700 years. Find the constant k. b. -0.001216 C. -0.01216 a. -0.0001216 d. -0. 1216 8. A coffee is sitting on Mr. Hunt's desk cooling. It cools according to the function T = 70(0.80)x + 20, where x is the time in minutes and Tis the temperature in degree Celsius. What is the initial temperature of the coffee? d. 90 а. 20 b. 70 c. 75 9. Using your function in question 3, what is the temperature after 10 minutes? c. 27.5 10. The formula P = 14.7e -0.21x gives the average atmospheric pressure, P, in pounds per square inch, at an altitude x, in miles above sea level. Find the average atmospheric pressure for an altitude of 2.3 miles. Round your answer to the nearest tenth. d. 7.8 Iblin.2 a. 7.5 b. 20 d.76 a. 11.0 lb/in.2 b. 8.4 lb/in.2 c. 9.1 Iblin.2

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