Evaluate the integral.
A. 
ln
+ C
B. 
ln
+ C
C. 
ln
+ C
D. 3 ln
+ C
Answer: B
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Solve the problem.The inequality |T - 31.2| ? 7 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. -33.1 ? T ? 35; The monthly averages are always within 
B. -38.2 ? T ? 45.2; The monthly averages are always within 
C. 24.2 ? T ? 38.2; The monthly averages are always within 
D. 29.3 ? T ? 33.1; The monthly averages are always within 
Solve the problem.If $4900 is invested in an account earning 7% annual interest compounded continuously, then the number of years that it takes for the amount to grow to $9800 is 
Find the number of years to the nearest tenth of a year.
A. 9.9 yr B. 11.9 yr C. 7.9 yr D. 14.9 yr
Write the interval as an inequality involving x. Graph the inequality.(-?, -4]
A. x < -4
B. x ? -4
C. x > -4
D. x ? -4
Determine whether the given expression is a polynomial. If it is, write it in standard form.2x-1 - 5 + 4x
A. Yes; 4x + 2x-1 - 5 B. No