10. 20

4. 11

18. Ella ______(ser) interesante.

You just bought a fixer-upper house and need to decide the best type of flooring that will fit your budget. (Conversion factors: There are 9 square feet in one square yard, and there are about 10.76 square feet in one square meter.)Option 1: Carpet is advertised at $8 per square foot.Option 2: Hardwood flooring is advertised at $91.46 per square meter.This option is equivalent to ${#1} per square footOption 3: Laminate flooring is advertised at $63.00 per square yard. This option is equivalent to ${#2} per square footDisregarding preference for the type of material, which of the three flooring materials is the best buy? You must show your work to justify your response. {#3}

The current student loan debt in the US is approximately $2.025 trillion. If the current population of North Carolina is approximately 10.7 million, find the amount each resident of North Carolina would receive, assuming the money would be equally distributed among the residents. (Round to the nearest cent) 

The table below gives the number of new homeschools in the state of North Carolina by school year broken down by school type. Use this information to answer the following questions, rounding percentages to one decimal place meaning to the nearest tenth of a percent.   2018-19     2019-20     2020-21     Totals     Independent   2488 2832 9025 14345 Religious 1447 1343 8726 11516 Totals 3935 4175 17751 25861 a. What percentage of all new religious homeschools were established for the 2020-21 school year? {#1}%b. What percentage of all new independent homeschools were established for the 2019-20 school year? {#2}%c. What percentage of the 2020-21 schools are classified as a religious type? {#3}%d. What percentage of all new schools are classified as an independent type? {#4}%e. What percentage of all new schools were established for the 2020-21 school year? {#5}%

The population of the world is approximately 7.7 billion people. a. The land area of Burke County is 515 square miles. If the entire world’s population were put into Burke County, determine the number of people that would be in each square mile. (Round to the nearest whole person) {#1}b. Based on the fact that there are approximately 28 million square feet in each square mile, does your answer to question 6 even seem reasonable? In other words, could the entire population of the world actually fit inside the borders of Burke County without people being stacked on top of other people? (Round to the nearest tenth)Each person would have {#2} square feet of space to move around. Is this reasonable? {#3}

Problem 3. – 10 Points total – (a) = (b) = 5 pts THIS CONTENT IS PROTECTED AND MAY NOT BE SHARED, UPLOADED, SOLD, OR DISTRIBUTED The concept of effective mass that is discussed in Chapters 3.2 and 3.3 can be understood as the curvature of the E-k diagram at the bottom of the band near its minimum. However, ultra-scaled modern semiconductor devices may operate under high electric field conditions resulting in the carriers not being near the minimum of the E-k band diagram. In this case, the effective mass is not a constant but a function of the wavenumber k. For example, the conduction energy band of a given semiconductor around the

THIS CONTENT IS PROTECTED AND MAY NOT BE SHARED, UPLOADED, SOLD, OR DISTRIBUTED  A semiconductor material used in high power applications operates at elevated temperature of °K. It has an energy gap EG = eV, effective masses mn* = m0 and mp* = m0, where m0 is the free electron mass = 9.11 x 10-31 kg. For 2 points calculate the position of the intrinsic Fermi level. For another 3 points find the electron and hole concentrations n0 and p0 when EC – EF = eV. Constants:   kb = 1.38 x 10-23 J/°K;           q = 1.602 x 10-19 C; h = 6.626 x 10-34 J-s;          

THIS CONTENT IS PROTECTED AND MAY NOT BE SHARED, UPLOADED, SOLD, OR DISTRIBUTED  A semiconductor material used in high power applications operates at elevated temperature of °K. It has an energy gap EG = eV, effective masses mn* = m0 and mp* = m0, where m0 is the free electron mass = 9.11 x 10-31 kg. For 2 points calculate the position of the intrinsic Fermi level. For another 3 points find the electron and hole concentrations n0 and p0 when EC – EF = eV. Constants:   kb = 1.38 x 10-23 J/°K;           q = 1.602 x 10-19 C; h = 6.626 x 10-34 J-s;