Write the number in scientific notation.210,000
A. 2.1 × 10-6
B. 2.1 × 106
C. 2.1 × 105
D. 2.1 × 10-5
Answer: C
Mathematics
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Perform the indicated operations.(2x - 
)(2x + 
)
A. 4x2 - 4x - 
B. 4x2 - 4x - 
C. 4x2 + 2x - 
D. 4x2 - 2x - 
Mathematics
Fill in the blank with one of the words or phrases listed below.
Fractions that have the same denominator are called 
fractions.
A. like B. simplest form C. equivalent D. undefined
Mathematics
Indicate whether the equation determines y to be a function of x.
?
?
A. yes B. no
Mathematics
Tell whether or not the rational expressions are equivalent.
, 
A. Yes B. No
Mathematics