Find the exact value by using a sum or difference identity.sin (25°) cos (35°) + cos (25°) sin (35°)
A. 
B. 
C. 
D. 
Answer: B
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The argument has a true conclusion. Identify the argument as valid or invalid.A square is a parallelogram.A square has four sides. A parallelogram has four sides.
A. Valid B. Invalid
Solve the polynomial inequality. Express the solution in interval notation.(x + 3)(x - 1)(x - 6) < 0
A. (-3, 1) ? (6, ?) B. (6, ?) C. (-?, -3) ? (1, 6) D. (-?, 1)
Solve.A suitcase has a length of 9x inches, a width of 6x, and a height of 2x. A small box of height 2 inches, length 4 inches, and width 4 inches, is placed in the suitcase. The suitcase is otherwise empty. Write an expression for the empty volume of the suitcase, then factor completely.
A. 4(3x - 2)3 B. 4(3x - 2)(9x2 + 6x + 4) C. 4(3x - 2)(9x2 + 12x + 4) D. 4(3x + 2)(9x2 - 6x + 4)
Write the percent as a decimal.3.1%
A. 0.031 B. 31.0 C. 0.31 D. 3.1