Find the exact value of the expression.sin (-2100°)
A. 
B. -1
C. 
D. 
Answer: C
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Solve the problem.A plate shaped like an equilateral triangle 1 m on a side is placed on a vertical wall 2 m below the surface of a pool filled with water. On which plate in the figure is the force greater? Try to anticipate the answer and then compute the force on each plate. Round to three decimal places when appropriate. 
A. plate 2 plate 1: 9712.049 N plate 2: 10,937.049 N B. plate 1 plate 1: 5468.524 N plate 2: 4856.024 N C. plate 2 plate 1: 4856.024 N plate 2: 5468.524 N D. plate 1 plate 1: 10,937.049 N plate 2: 9712.049 N
Simplify the expression.
?
?
Write the answer without using negative exponents. Assume that the variable is restricted to those numbers for which the expression is defined
What will be an ideal response?
Find the probability.If two cards are drawn with replacement from an ordinary deck, find the probability the first card is a heart and the second is a diamond.
A. 
B. 
C. 
D. 
Subtract.-6.7 - (-3.9)
A. 10.6 B. -2.8 C. 2.8 D. -10.6