Prior to 1890, 9 in 10 African Americans lived in the South.

(12 points): Suppose you have the following polynomial function   Determine the real zeros of the polynomial as well as the multiplicities for each. Be sure to state how the multiplicity affects the behavior of the graph of the function.  All work for this question should be shown on work upload. Failure to show work may result in zero points for this question.

(4 points): Perform the indicated operations with the complex numbers. Type your answers in the form a+bi with no spaces.  1) 2) Multiply by its conjugate: 3) 4) Divide = All work for this question should be shown on work upload. Failure to show work may result in zero points for this question.

Match the voice therapy approach with its primary goal. 

S&P companies.xlsx 1. Download the data above, which contains selected information from S&P 500 companies. Create a pivot table from the original data that shows the top 5 GICS sector by sum of market value. The pivot table result should show only top 5 results. Sort them from highest to lowest. Create a new pivot table in a separate tab to report each industry’s operating profitability using Operating Profit Margin. Graph a pivot chart to visualize the results.  Create a new pivot table in a separate tab to examine relationship between dividend yield and return. First, use “calculated field” tool within pivot table to create a calculated field called “3-year average”, which is the average of 2016,2017,2018 returns. Report each company’s 3-year average return along with its dividend yield in the pivot table. Then, copy paste both columns into an empty area and run a simple linear regression to examine whether a company’s dividend yield can predict its 3-year average return. Report the regression output and type out your findings briefly: What does the regression coefficient suggest? Is the coefficient significant? 2. In the same file, just create a new tab for question 2.  SkyPeak Mountain Resort is evaluating the installation of a new high-speed gondola lift to connect its base lodge to the summit. The gondola system costs $8,200,000 to purchase, with an additional $620,000 in installation and site preparation costs. Both costs combined form the asset’s depreciation base. The system has a useful life of 8 years and a salvage value of $750,000, and will be depreciated using the straight-line method. Management estimates the gondola will complete 40 trips per day, with each trip carrying an average of 18 passengers. The resort operates 140 days per year. In the first year, the fare per passenger is expected to be $18.00, increasing by 3% annually. The variable cost per passenger is $4.50, and total fixed operating costs are $280,000 per year. At the end of year 6, the gondola infrastructure will be decommissioned at a removal cost of $310,000, and salvageable components will be sold for $3,000,000. The resort’s cost of capital is 9.0%, and its marginal tax rate is 25%. Set up the input, calculate initial outlay, annual after-tax cash flow for each year, and the terminal cash flow.  Calculate NPV, IRR, MIRR, PI of the gondola lift. Is the project acceptable? Conduct a sensitivity diagram containing 3 variables of your choice.  Create a best-case scenario and a worst-case scenario. Change 3 variables of your choice, report NPV, IRR, MIRR and PI in the scenario summary. If there’s a 80% probability of base case, 10% probability of best case, and 10% probability of worst case, calculate expected NPV, Variance, Standard deviation, and the probability of a negative NPV. 

Which of the following refers to climate?

Behavioral treatment for chronic cough related to irritable larynx syndrome often focuses on which of the following strategies?

Warmer atmospheric temperatures lead to a longer growing season in temperate regions. Longer growing seasons leads to a reduction of carbon dioxide in the atmosphere which, in turn, leads to cooler temperatures.  What type of feedback is this?

The temperature, wind speed, relative humidity, and cloudiness at a given time and at a given location are referred to as

A singer presents with hyperfunctional voice use and excessive laryngeal tension. Name two therapy approaches that may be appropriate initial treatment options.