Multiply and simplify. Express answers in exponential form with positive exponents only. Assume that all variables represent nonzero quantities.x ? x-7
A. x6
B. 
C. x8
D. 
Answer: B
Mathematics
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Use the order of operations to simplify the expression.
A. 10 B. 15 C. 20 D. 16
Mathematics
Round the number as indicated.812,419 to the nearest hundred thousand
A. 1,000,000 B. 900,000 C. 800,000 D. 700,000
Mathematics
Sketch the graph and show all local extrema and inflection points.y = 
A. Local minimum: (2,-1)
Local maximum: (-2,1)
Inflection point: (0,0)
B. Local minimum: (-2,-1)
Local maximum: (2,1)
Inflection point: (0,0), (-2
, -1
),(2
, 1
)
C. Maximum: (0,1)
No inflection point
D. Local minimum: (-2,- 
)
Local maximum: (2,
)
Inflection point: (0,0)
Mathematics
Evaluate the function as indicated.Find f(-5.1) when f(x) = 3x + 0.6.
A. 15.9 B. -14.7 C. -15.9 D. -15.24
Mathematics