Perform the operations.(5a - 12)2
A. 5a2 - 120a + 144
B. 25a2 - 120a + 144
C. 5a2 + 144
D. 25a2 + 144
Answer: B
Mathematics
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Match the equation with the surface it defines. 
+ 
= 1 
A. Figure 4 B. Figure 2 C. Figure 3 D. Figure 1
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Which of the following closed shapes are not convex? ?
A.
?
B.
?
C.
?
D.
?
E.
?All shapes are convex.
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Find the indicated sum.9 + 13 + 17 + 21 + . . . + a50
A. 5350 B. 5356 C. 5450 D. 209
Mathematics
Use a property of equality to solve the equation. Then check the result.
?
?
__________
Fill in the blank(s) with the appropriate word(s).
Mathematics