Factor the expression completely, if possible.49a2 - 56ab + 16b2
A. (7a + 4b)2
B. (7a - 4b)2
C. (7a - 4b)(7a + 4b)
D. Does not factor
Answer: B
Mathematics
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Solve the equation.10r2 = 2r
A. {0}
B. 
C. 
D. {0, 5}
Mathematics
Decide if the sets are equivalent to one another.{36, 13, 27, -13} and {x|x is a letter in the phrase "I AM A MAN"}
A. Equivalent B. Not equivalent
Mathematics
Simplify the root. 
A. x
B. |x|
C. 
D. -x
Mathematics
Solve. Express the result in scientific notation. If necessary, round the decimal factor to two decimal places.A business projects next year's profits to be $174,000,000. Write this number in scientific notation.
A. 1.74 × 10-9 B. 1.74 × 107 C. 1.74 × 108 D. 1.74 × 109
Mathematics