Determine the principal value without using a calculator.- 3
A. 4
B. -2
C. 2
D. Not real number
Answer: B
Mathematics
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Plot the two points given by the ordered pairs.A(3, 5), B(-2, 1)
A. 
B. 
C. 
D. 
Mathematics
Solve the exponential equation. For irrational solutions, round to four decimal places.25 - 3x = 
A. {3}
B. 
C. {-3}
D. {8}
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Determine where the function is increasing and where it is decreasing.f(x) = x2 + 8x + 7
A. increasing on (-4, ?) decreasing on (-?, -4) B. increasing on (-?, -9) decreasing on (-9, ?) C. increasing on (-9, ?) decreasing on (-?, -9) D. increasing on (-?, -4) decreasing on (-4, ?)
Mathematics
Use a method of your choice to solve the equation.x2 + 4x - 21 = 0
A. x = -3 or x = 7 B. x = 3 or x = -7 C. x = 3or x = 7 D. x = -3 or x = -7
Mathematics