Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.20x + 15 = 5(2x + 11)
A. Conditional; {-7}
B. Conditional; {4}
C. Identity; {all real numbers}
D. Contradiction; ?
Answer: B
Mathematics
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Solve the linear system using an inverse matrix. x + 2y + 3z = 1 x + y + z = -42x + 2y + z = -6
A. (4, 8, -6) B. (-5, 12, -1) C. (-21, -31, -14) D. (-11, 9, -2)
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Write the capital letters for the ASCII code. ? 72 65 86 69 ?
A. HOSE B. MUST C. HAVE D. PAGE E. HOME
Mathematics
Is ?CBD an interior angle of ?ABC?
Mathematics
Determine the real solutions to the system of nonlinear equations.x3 + y = 010x2 - y = 0
A. (-1, 1), (-10, 1000) B. (0, 0), (-10, 1000) C. (0, 0), (-10, 100) D. (0, 0), (10, -1000)
Mathematics