Factor completely.49x2 - 25
A. (7x + 5)2
B. (7x - 5)2
C. (49x + 1)(x - 25)
D. (7x + 5)(7x - 5)
Answer: D
Mathematics
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Solve the problem.What region in the xy-plane minimizes the value of 
?R
A. The ellipse 9x2 + 100y2 = 900
B. The ellipse 
+ 
= 1
C. The ellipse 100x2 + 9y2 = 1
D. The ellipse 
+ 
= 1
Mathematics
Write the digit for the given place value in the whole number.78,523thousandstens
A. thousands 8 tens 7 B. thousands 8 tens 2 C. thousands 2 tens 3 D. thousands 5 tens 3
Mathematics
Solve the equation.2x - 4 + 5(x + 1) = 6x + 5
A. 
B. 
C. 
D. 
Mathematics
Write the fraction in decimal notation.
A. 
B. 
C. 
D. 
Mathematics