Find A-1 without a calculator.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
Answer: A
Mathematics
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Write the number in decimal notation.The average high temperature in Death Valley, averaged over one week, was one hundred twenty-two and fifty-two hundredths °F.
A. 122.502 °F B. 122.0502 °F C. 122.52 °F D. 122.052 °F
Mathematics
Graph the function.y = sec x
A. 
B. 
C. 
D. 
Mathematics
Solve the equation. State whether the equation is a contradiction, an identity, or a conditional equation.4x - 4 + 2x + 5 = 8x - 2x - 2
A. {0}; conditional equation B. {1}; conditional equation C. all real numbers; identity D. ? or { }; contradiction
Mathematics
Solve the absolute value equation: |8+5c| - 18 = -7.
a. The solution set is { , b. The solution set is { , }. c. The solution is the empty set. d. The solution is the set of all real numbers.
Mathematics