Find the exact value of the expression in degrees without using a calculator or table.arctan 
A. -135°
B. 45°
C. 225°
D. -45°
Answer: D
Mathematics
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Approximate the square root. Round to the nearest tenth, if needed.
A. 4.6 B. 3.6 C. 3.5 D. 3.7
Mathematics
Find the quotient and write the answer in simplest form. Assume variables represent nonnegative values.
A. 42w4z2
B. 42w2z4
C. 42w2z2
D. 42w2z2
Mathematics
Solve the polynomial inequality. Express the solution in interval notation.(x + 4)(x - 4)(x - 5) > 0
A. (-?, -4) ? (4, 5) B. (5, ?) C. (-?, 4) D. (-4, 4) ? (5, ?)
Mathematics
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x - 2y + 3z = 114x + y - z = 42x - y + 3z = 10
A. (2, 3, 5) B. (-2, -3, 3) C. (2, -3, 1) D. No solution
Mathematics