Let f(x) = 8x2 - 5x and g(x) = 7x + 9.Find the composite.f[g(k)]
A. 392k2 - 973k + 603
B. 56k2 - 35k + 9
C. 392k2 + 973k + 603
D. 56k2 + 35k + 9
Answer: C
Mathematics
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Sketch the curve.x2 + 2y2 = 100
A. 
B. 
C. 
D. 
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."Twice a number, decreased by 8
A. 2x - 8 B. 2(x - 8) C. 2 + x - 8 D. x - 16
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.
A. 9 B. 5 C. ±3 D. 3
Mathematics
Simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics