The lengths of the legs of a right triangle are given. Find the hypotenuse.a = 20, b = 48
A. 20
B. 32
C. 48
D. 52
Answer: D
Mathematics
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Simplify the expression.cos 
tan 
sec ?
A. 1 B. sin ? - csc ? C. -1 D. -cos ? + sec ?
Mathematics
Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = 6x4 - 5x3 + x2 - 3x + 10
A. 4 positive zeros, no negative zeros B. 4 or 2 positive zeros, no negative zeros C. 4, 2 or 0 positive zeros, no negative zeros D. 4, 2 or 0 positive zeros, 1 negative zeros
Mathematics
Select the system of linear equations represented by the following augmented matrix.
?
?
A. ?
B. ?
C. ?
D. 
E. ?
Mathematics
Solve the problem.Find an upper bound for 
in estimating 
with 
steps.
A. 
B. 
C. 0
D. 
Mathematics