Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Identify the number represented on the abacus.
A. 515 B. 191 C. 151 D. 919
Mathematics
Provide an appropriate response.Find the difference in the area of a circle circumscribed about a regular hexagon with sides of 10 cm and the area of the circle inscribed inside the same hexagon. 
A. 314.16 cm2 B. 235.62 cm2 C. 78.54 cm2 D. 157.08 cm2
Mathematics
Without using a calculator, give the exact trigonometric function value with rational denominator.sec 30°
A. 
B. 
C. 1
D. 
Mathematics
Determine if the two fractions are equivalent.
and 
A. equivalent B. not equivalent
Mathematics