Write the statement as an inequality.z is less than or equal to -3
A. z < -3
B. z ? -3
C. z = -3
D. z > -3
Answer: B
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Determine whether the given constant is a solution to the given polynomial equation.x4 - 3x2 - 4 = 0; -1
A. No B. Yes
Identify the vertex of the parabola.y = x2 + 5
A. (-5, 0) B. (0, 5) C. (5, 0) D. (0, -5)
Use the Intermediate Value Theorem to determine whether the polynomial function has a zero in the given interval.f(x) = 5x4 + 3x3+ 9x - 10; [-2, -1]
A. f(-2) = 28 and f(-1) = -17; yes B. f(-2) = -28 and f(-1) = -17; no C. f(-2) = -28 and f(-1) = 17; yes D. f(-2) = 28 and f(-1) = 17; no
Use a graphing calculator to solve the system by finding A-1 and A-1B. (Round to the nearest integer if necessary.)2.67x + 1.88y-z = 20.97x - 1.77y + 0.31z = -0.832.78x +y+z = 34.46
A. {(6, 9, 6)} B. {(7, -6, -9)} C. {(7, 6, 9)} D. {(8, 4, 9)}