2 3/4 + 4 7/8 =
a. 7 5/8
b. 6 5/8
c. 7 1/4
d. 5 3/4
e. 2 1/2
a. 7 5/8
Mathematics
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A. - 
B. 
C. 
D. - 
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Factor.x2 + 121
A. (x + 11)2 B. (x - 11)2 C. (x - 11)(x + 11) D. Not possible
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Use identities to write the expression as a function of x alone.cos (x - 270°)
A. cos x B. -sin x C. sin x D. -cos x
Mathematics