Use a graphing calculator to solve the equation to the nearest tenth.x3 + 3x2 - 7x - 21 = 0

A. 3, 2.5, -2.5
B. 3, 2.6, -2.6
C. -3, 2.6, -2.6
D. -3, 2.7, -2.7


Answer: C

Mathematics

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For what values of x does the series converge conditionally?

A. x = 0
B. x = 
C. x = - 
D. None

Mathematics

Solve the equation. Express radicals in simplest form.(2m - 3)2 = 49

A. 2, -5 B. 10, -4 C. 5, -2 D. 4, -10

Mathematics

Use the given information to find the quadrant in which ? lies.tan ? > 0 and sin ? < 0

A. Quadrant III B. Quadrant II C. Quadrant IV D. Quadrant I

Mathematics

Use DeMoivre's Theorem to find the indicated power of the complex number. Write the answer in rectangular form.4

A. 256i
B. 128 + 128i
C. 128 + 128i
D. 128 + 128i

Mathematics