Factor the expression completely. If the polynomial is prime, state this as your answer.5r3 - 135
A. 5(r + 3)(r2 - 3r + 9)
B. 5(r - 15)(r2 + 15r + 45)
C. 5(r - 3)(r2 - 3r + 9)
D. 5(r - 3)(r2 + 3r + 9)
Answer: D
Mathematics
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Show that the equation is not an identity by listing the value(s) of the variable from among 0, 
, 
, and - 
for which the equation is false.sin ? + cos ? = tan ?
A. 0
B. 0, 
, 
, and - 
C. 0 and 
D. 0, 
, and - 
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Find the indicated sum. Find the sum of the first 9 terms of the geometric sequence: 
, - 
, 
, - 
, 
, . . .
A. 
B. 616
C. 
D. 
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If the base of a right prism is a right triangle with legs 3 cm and 4 cm and the height of the prism is 10 cm, then the surface area of the prism is:
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Solve the matrix equation for X.A = 
, B = 
, AX = B
A. 
B. 
C. 
D. 
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