Answer: LAST OPTION.
Step-by-step explanation:
The Pythagorean Theorem states the following relationship between the three sides of a triangle that has an angle of 90 degrees, known as "Right triangle":

Where "a"is the hypotenuse and "b" and "c" are the legs of the right triangle.
If the triangle ABC is a right triangle then AB must be equal to
, then, you need to substitute the values into
to check this:

Then the triangle ABC is not a right triangle.
Therefore, the statement that justifies why this triangle is not a right triangle is:

A) $1288 (8% of $1400 = $112, $1400 - $112 = $1288)
B) $840 ($112 x 5 = $560, $1400 - $560 = $840)
16
Explanation:
Quotient of 6 and 3 indicates division
6 / 3 = 2
Eight times the quotient
8 * 2 = 16
You just have to combine like terms 4x+5x +12 -
1 = 9x+11 I am not sure if it is 12x or just 12 if it is 12x the answer is 21x-1