A 2007 article on identify theft included the statement: “Electronic payments boosted the Canadian economy by 25 per cent over the past two decades, representing $107 billion of the economy’s $437-billion growth from 1983 to 2003, according to a study sponsored by Visa Canada in 2004.” Identify and explain three items of concern that would be part of a critical analysis. (HINT: You must use 3 categories from critical analysis. Categories include; sample, author, source, relevance, bias)

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

47 - 90 = 43

43 - 180 = x

x = 137

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

1. perpendicular

2. parallel

3. perpendicular