Factoring. A trinomial is a perfect square trinomial if it can be factored into a binomial multiplied to itself. (This is the part where you are moving the other way). In a perfect square trinomial, two of your terms will be perfect squares.
Answer:
a. Using multiplication and addition to check the digits, it is <u>invalid</u> because the total is 51 and does not end in a 0
Step-by-step explanation:
The sum of alternate digits is multiplied by 3. Those digits are ...
0 3 5 0 1 1 . . . . sum of 10
The sum of remaining alternate digits is added to that.
7 8 2 0 3 1 . . . . sum of 21
The result of the arithmetic ...
mod(3×10 + 21, 10) = 1 . . . . . <em>should be zero</em> for valid GTIN-12 UPC code
Answer:
58 degrees.
Step-by-step explanation:
m<3=180-119=61
Write the equation :
61+(10x-22)+(9x-11)=180
x=8
m<1= 58 degrees