Factor completely.9x2 + 25
A. (3x - 5)2
B. (3x + 5)2
C. Prime
D. (3x + 5)(3x - 5)
Answer: C
Mathematics
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Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the first-quadrant portion of the circle
if the density of the rod is 
A. 
= 
?, 
= 
?
B. 
= 0, 
= 
?
C. 
= 2?, 
= 2?
D. 
= 
?, 
= 
?
Mathematics
Write true or false for the statement.The sum of the measures of the angles in a triangle is 90°.
A. True B. False
Mathematics
Simplify the expression.2434/5
A. 2,187 B. 6,561 C. 19,683 D. 81
Mathematics
Write the sentence as an equation. Use x to represent "a number."Five subtracted from eight times a number gives 107.
A. 8(x - 5) = 107 B. 8x - 5 = 107 C. 5(8 - x) = 107 D. 5 - 8x = 107
Mathematics