Find 
by implicit differentiation.
?
?
A. 
B. 
C. 
D. 
Answer: D
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Find the LCD of the rational expressions. Then rewrite each as an equivalent rational expression with the LCD.
; 
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Solve.Armando and Luisa bought a rectangular building lot in a suburb of Austin, Texas. It measured 75.9 feet by 90.7 feet. What is its area in square feet?
A. 5834.13 ft2 B. 6784.13 ft2 C. 6884.13 ft2 D. 6995.23 ft2
Establish the identity.
= cos x + cot x
What will be an ideal response?
Suppose that the data in the table below shows the average earnings of year-round full-time workers by gender for several different levels of educational attainment. Find and interpret the slope of the linear regression line. Round the slope to three decimal places. ? Average Annual Earnings Males Females $21,659 $18,118 $26,277 $21,938 $35,725 $30,616 $41,875 $36,201 $44,404 $38,558 $57,220 $50,413 $71,530 $63,270 $82,401 $72,270
A. The slope is 0.910. The average annual earnings of females is decreasing at a rate of $0.910 per dollar increase in the annual of males. B. The slope is 0.807. The average annual earnings of females is decreasing at a rate of $0.807 per dollar decrease in the average annual earnings of males. C. The slope is 0.759. The average annual earnings of females is decreasing at a rate of $0.759 per dollar decrease in the average annual earnings of males. D. The slope is 0.900. The average annual earnings of females is increasing at a rate of $0.900 per dollar increase in the average annual earnings of males. E. The slope is 0.749. The average annual earnings of females is increasing at a rate of $0.749 per dollar increase in the average annual earnings of males.