Solve the problem.The inequality |T - 51| ? 17 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. T ? 68; The monthly averages are always less than or equal to 
B. 34 ? T ? 68; The monthly averages are always within 
C. 27 ? T ? 75; The monthly averages are always within 
D. 27 ? T; The monthly averages are always greater than or equal to 
Answer: B
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Solve.logx81 = 2
A. x = 
B. x = -9
C. x = 9
D. x = -2
Solve the problem.You have $50,000 and wish to invest part at 10% and the rest at 6%. How much should be invested at each rate to produce the same return as if it all had been invested at 9%?
A. $37,500 at 6%, $12,500 at 10% B. $37,000 at 10%, $13,000 at 6% C. $37,000 at 6%, $13,000 at 10% D. $37,500 at 10%, $12,500 at 6%
Determine whether the ordered triple is a solution to the given linear system.(-2, 6, -1)
A. Yes B. No
List the elements of the set.The days of the week
A. {Monday, Tuesday, Wednesday, Thursday, Friday} B. {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday} C. {Saturday, Sunday} D. {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Sunday}