Solve.7x + 2 = 2x
A. -2.23
B. -3.11
C. 2.23
D. 0.322
Answer: B
Mathematics
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Find the product.(10a - 9)2
A. 100a2 + 81 B. 100a2 - 180a + 81 C. 10a2 + 81 D. 10a2 - 180a + 81
Mathematics
Find the maximum or minimum point of the function and state whether it is a maximum or minimum.f(x) = x2 + 12x + 33
A. (-6, -3); minimum B. (-3, -6); maximum C. (-3, 0); maximum D. (0, -6); minimum
Mathematics
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = -2x4 + 9x3 - 4x2 + 8x - 3
A. 0 or 2 positive; 0, 2, or 4 negative B. 0, 2, or 4 positive; 0 negative C. 0, 2, or 4 positive; 0, 2, or 4 negative D. 0 or 2 positive; 0 or 2 negative
Mathematics
Evaluate the expression.
A. 1 B. 7 C. 0 D. 21
Mathematics