Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes
B. Yes; no
C. No
Answer: B
Mathematics
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Solve the direct variation.If m varies directly as p and m = 20 when p = 4, what is the value of m when 
A. 16 B. 25 C. 49 D. 35
Mathematics
Let X be a point obviously outside the figure. Draw 
. How many times does it cross the curve?
?
?
It will cross the curve an __________ (even, odd) number of times.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Add.-6 + (-31) + 87 + (-43)
A. 19 B. -167 C. 93 D. 7
Mathematics
Provide an appropriate response.If the series 
is integrated term by term, for what value(s) of x (if any) does the new series converge and for which the given series does not converge?
A. x = -10, x = -8 B. x = -8 C. none D. x = -10
Mathematics