Perform the indicated operations.(-4 + x)(3x + 2)
A. x2 - 10x - 10
B. 3x2 - 8x - 10
C. 3x2 - 11x - 8
D. 3x2 - 10x - 8
Answer: D
Mathematics
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Verify the identity.sin3 x cos2 x = sin x (cos2 x - cos4 x)
What will be an ideal response?
Mathematics
Solve the triangle.a = 3.6, b = 7.7, c = 6.7
A. A ? 27.9°, B ? 94.7°, 
B. A ? 27.9°, B ? 60.4°, 
C. No triangles possible
D. A ? 27.9°, B ? 91.7°, 
Mathematics
Does the system have one solution, no solution, or an infinite number of solutions? x - 2y = 52x - 4y = 18
A. Infinite number B. No Solution C. One
Mathematics
Tell whether the statement is true or false.Some rational numbers are integers.
A. True B. False
Mathematics