Complete the factoring.5x2 - 45x = 5x( )
A. 9 - x
B. x2 - 9
C. x - 9
D. 9 - x2
Answer: C
Mathematics
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Compute r, the linear coefficient of correlation, for the given data.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below.
A. 0.109 B. 0.867 C. 0.548 D. 0.714
Mathematics
Evaluate the derivative at the given value of x.y = -
; x = -11
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.10log(t)
A. 10t B. t C. 1 D. 10t
Mathematics
Complete the identity.csc (2?) - sec (2?)(tan ? - 1) = ?
A. 
B. 
C. 
D. 
Mathematics