Simplify.-( -( -( -n))) for n = -11
A. -11
B. 12
C. 11
D. -12
Answer: A
Mathematics
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Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.a + ar + ar2 + . . . + ar14
A. 
B. 
C. 
D. 
Mathematics
Match the given function to its graph.1) y = 2 sin (
x)2) y = 2 sin (
x)3) y = 2 cos (
x)4) y = 2 cos (
x)A)B)
?
/>C)D)
?
A. 1B, 2D, 3A, 4C
B. 1A, 2C, 3D, 4B
C. 1A, 2C, 3B, 4D
D. 1C, 2A, 3D, 4B
Mathematics
Write a mathematical expression for the word phrase.3.2, added to 4.7 more than 7.1
A. (7.1 + 4.7) + 3.2 B. (3.2 + 4.7) + 7.1 C. 7.1 - (4.7 + 3.2) D. (7.1 + 3.2) + 4.7
Mathematics
Factor and simplify.cos3 x - 512
A. (cos x + 8)(cos2 x - 8cos x + 64) B. (cos2 x - 8)(cos x + 64) C. (cos x - 8)(cos2 x + 8cos x + 64) D. (sin2 x - 8)(cos x + 64)
Mathematics