Factor completely. If the polynomial is prime, so state.21 + 30x2 - 57x
A. (5x - 7)(6x - 3)
B. (5x + 7)(-6x + 3)
C. (5x - 7)(6x + 3)
D. prime
Answer: A
Mathematics
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Find the average value of the function f over the given region.f(x, y) = 7x + 5y over the region bounded by the coordinate axes and the lines 
and 
.
A. 
B. 
C. 
D. 
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = tan-1 9x
A. Q(x) = 1 + 9x2
B. Q(x) = 1 - 9x2
C. Q(x) = 9x
D. Q(x) 1 + 
x2
Mathematics
Write the first four terms of the sequence and the indicated term.an = 
, 19th term
A. 0, 
, 
, 
, 
B. 
, 
, 
, 
, 
C. 
, 
, 
, 
, 
D. 
, 
, 
, 
, 
Mathematics
Determine whether the relation defines y as a function of x. Give the domain.y = x3
A. Not a function; domain: (-?, ?) B. Not a function; domain: all whole numbers C. Function; domain: (-?, ?) D. Function; domain: all whole numbers
Mathematics