The following matrix gives the number of vehicles sold in January at a car dealership. Use the matrix to complete parts (a) through (c) below. Cars Trucks 14 16 22 12 New Used www (a) In February, the new car sales decreased by 4, but the new truck sales increased by 25%. The used car sales increased by 50% while the used truck sales increased by 7. Write the vehicle sales matrix for February. (b) Write a matrix that represents the total vehicle sales over the two month period. (c) Write a matrix showing the change in sales from January to February.

A newspaper surveyed companies on the annual amount of money spent on television commercials and the estimated number of people who remember seeing those commercials each week. A soft-drink manufacturer spends $40.1 million a year and estimates 78.6 million people remember the commercials. For a package- delivery service, the budget is $22.9 million for 21.9 million people. A telecommunications company reaches 88.9 million people by spending a whopping $154.9 million. Which matrix below DOES NOT represent this situation? (All value in millions) 40.1 22.9 154.9 C = 78.6 21.9 88.9 21.9 22.9] C = 78.6 40.1 59°F Cloudy 一 一

only HANDWRITTEN answer needed ( NOT TYPED)

The input-output matrix for a simplified economy with just four sectors (natural resources, manufacturing, trade and services, and personal consumption) is given below. Suppose the demand (in millions of dollars) matrix is matrix D given below. Find the amount each sector should produce. SEP Natural Resources Manufacturing Trade and Services Personal Consumption 3 View an example Get more help $ R F 000 000 F4 % om/Player/Player.aspx?cultureld=&theme=math&style=highered&disableStandbyIndicator=true&assignmentHandles 5 T Natural Manufacturing Trade and Resources Services 0.0029 0.0584 0.2031 0.6105 Production levels of units from natural resources, units from manufacturing, units from trade and services, and units from personal consumption are needed. (Round to the nearest whole number as needed.) G 0.1044 0.0827 0.0867 0.6253 F5 6 Y H ▲ F6 0.0429 0.1088 0.1019 0.3447 & 7 U F7 J * 00 8 ►II F8 | K Personal Consumption 0.0031 0.0321 0.3556 0.0798 ( 9 Clear all F9 O D= 0 L F10 450 299 124…