Solve the equation. Express irrational answers in exact form and as a decimal rounded to 3 decimal places.
x = 41 - x
A. 
? 1.292
B. ln 
- ln 4 ? -0.981
C. 
? 0.774
D. 
? 1.128
Answer: C
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Solve the problem.During a cold front in Alaska the temperature dropped 5°F each hour for 3 hours. Express the total drop in temperature as an integer.
A. -5°F B. -15°F C. 15°F D. -10°F
Determine whether or not the function is linear. If it is, determine the slope and interpret it.The value of a particular car is given by V(t) = 22,000 - 3200t, where t is the age of the car in years.
A. Not linear B. Linear; 3200; Each year, the car depreciates $3200. C. Linear; 3200; Each year, the car appreciates $3200. D. Linear; 22,000; Each year, the car depreciates $22,000.
Rewrite the statement so the inequality symbol points in the opposite direction.-42 < x
A. x > 42 B. x < -42 C. x < 42 D. x > -42
Solve the problem.Consider the data showing the average life expectancy of woman in various years. 
Find the regression line. Let the year 1900 represent x = 0.
A. y = 0.37x - 21.8 B. y = 0.15x + 60.9 C. y = - 0.11.2x + 23.1 D. y = 8.3x + 22.1