Simplify the expression by combining like terms.3y - y - 8y
A. -4y
B. -5y - y
C. -6y
D. -5y
Answer: C
Mathematics
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Perform the indicated computations. Write the answer in scientific notation.(5 × 108)2
A. 2.5 × 1011 B. 2.5 × 1017 C. 1 × 1017 D. 1 × 1011
Mathematics
Multiply and simplify.(sin x - cos x)(sec x + csc x)
A. tan x - sin x B. cos x - cot x C. cot x + csc x D. tan x - cot x
Mathematics
Evaluate the expression when x = 5, y = -2, and t = 8.x - y
A. 3 B. -7 C. -3 D. 7
Mathematics
Find the greatest common factor of the list of items.x5y5, xy8, x6y
A. x11y13 B. xy C. x6y8 D. x5y5
Mathematics