If we model after-tax household income with a normal distribution, then the figures of a 1995 study imply the information in the following table. Assume that the distribution of incomes in each country is normal, and round all percentages to the nearest whole number. What percentage of U.S. households had an income of $50,000 or more? Express your answer to the nearest 1%.
CountryU.S.CanadaSwitzerlandGermanySwedenMeanhouseholdincome$38,000$35,000$39,000$34,000$32,000Standarddeviation$21,000$17,000$16,000$14,000$11,000?
__________% of households
Fill in the blank(s) with the appropriate word(s).
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Find all the first order partial derivatives for the following function.f(x, y) = ln 
A. fx(x, y) = - 
; fy(x, y) = 
B. fx(x, y) = 
; fy(x, y) = 
C. fx(x, y) = -ln 
; fy(x, y) = ln 
D. fx(x, y) = -ln
; fy(x, y) = ln 
Use the chart to answer the question.The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss). Month Profit (Loss) in DollarsJanuary -14,526February 1874March -8977April -14,107May 14,073June 14,632July -13,834August -13,170September -4860October 6630November -3338December-974Of the months which had no profit, which had the least loss?
A. February B. January C. June D. December
Find the exact value of s in the given interval that has the given circular function value.
; cos s = - 
A. s = 
B. s = 
C. s = 
D. s = 
Solve the equation.4
= 
A. 
B. 
C. 
D. 