The following data represents annual expenditure on a product (Y), annual income(X₁) and the price of the product (X₂).YX₁1X2324.00 45,000.00 9.00386.00 43,000.00 7.00424.00 52,000.00 4.00248.00 37,000.00 9.00204.00 29,000.00 9.00409.00 39,000.00 5.00532.00 62,000.00 7.00627.00 76,000.00 5.00If a consumer earned $50,000 per year and the good cost $11, we would expecttheir yearly expenditure to be closest toSelect one:O a.$329.90O b. $332.30O c. $337.22O d. $334.86

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Answered: The following data represents annual…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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5. [19]27 + [13]27 %3D
1.2 Assume Ruvi bought a new car for R300 000. The car depreciates at 12.5% p.a. on a straight line depreciation method. This can be easily calculated using a simple table. Hint: Use provided interest rate to determine the value of residual. What will the value of Ruvi's car be in five years' time? Age of car in years Depreciation expense Book value You can also use the formula below to verify your book value after 5 years: (no marks) A = P[1 - (i)(n)]
please show working using the formulas.
4. mzd = %3D 5. тZe mLe mLe = 6. m2 ƒ =
Find the time required for the investment given in the table below to grow to the specified amount.
/ 13.14. Owing to change in prices the consumer prict index of the working class in a certain area rose in a month by one quarter of what it was before to 225. The index of food became 252 from 198, that of clothing from 185 to 205, that of fuel and lighting from 175 to 195 and tiat of miscellaneous from 138 to 212. The index of rent, however, remained unchanged at 150. It was known that the weights of clothing, rent and fuel and lighting were same. Find out the exact weight of all groups.
Data about the sound levels from a new speaker are collected at a manufacturing facility and are used to calculate the model ŷ = 62.4(0.915)x, where x represents the distance from the speaker in meters and ŷ represents the predicted sound level in decibels. Interpret the percent rate of change of the model in the context of the problem. For every increase in one meter from the speaker, the sound level is predicted to decrease by about 91.5%. For every increase in one meter from the speaker, the sound level is predicted to decrease by about 8.5%. For every increase in one meter from the speaker, the sound level is predicted to increase by about 91.5%. For every increase in one meter from the speaker, the sound level is predicted to increase by about 8.5%.
If my bus is 3.5 years old, what are the projected annual maintenance costs? (Enter a whole number) Age of Bus(years)Annual Maintenance Cost($)2.4 3502.3 3702.4 4803.1 5203 5905.8 5504.8 7503.8 8003.6 7904.9 9505.5 915
What is the following: 1. Sum of XY 2. a=? 3. b=?
Determine the equation of the tangent to y 23.03x+y+13.03=0 O 23.03x-y-13.03=0 O-23.03x+y+13.03=0 None of the above 10% at (1, 10).
For items 18-19: A manufacturer determines that the cost of producing x units of a particular commodity is C thousands of dollars, where C(x) = 0.04x? +5. 1x + 40. 18. What is the average rate of change of the cost as the level of production changes from x=10 to x-11 units? A. $4.98 per unit B. $5.94 per unit C. $ 6.24 per unit D. $ 6.58 per unit 19. Find the instantaneous rate of change of the cost with respect to the production level when x=10. Is the cost increasing or decreasing when 10 units are produced? A. increasing at the rate of $5.90 per unit B. decreasing at the rate of $4.90 per unit C. increasing at the rate of $6.20 per unit D. decreasing at the rate of $6.60 per unit
S(t) = 436.974(1.040)' students gives the fall enrollment at Clemson University, t years after fall of 1900, 0st<90 . Checkpoint: S(2) = 472.631 6. Calculate the percentage rate of change in fall 1980. a. 22.050 b. 25.497 c. 3.922 d. 120.440

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