Perform the indicated operation. Round your answer to the nearest hundredth, if necessary.-2.23(-7.86)
A. 0.18
B. 17.53
C. 175.3
D. 1.75
Answer: B
Mathematics
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Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 3
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Decide whether the given statement is always true or not always true.(A ? B) ? A
A. Not always true B. Always true
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Provide an appropriate response.How many real solutions are possible for a system of equations whose graphs are a parabola and a circle?
A. 0, 1, 2, or 3 solutions B. 1, 2, 3, or 4 solutions C. 0, 1, 2, 3, or 4 solutions D. 0, 1, 2, 3, 4, or 5 solutions
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Find the exact value of the expression using the provided information.Find sin(s + t) given that cos s = - 
, with s in quadrant II, and 
with t in 
A. 
B. - 
C. 
D. - 
Mathematics