X^2-16 is a difference of squares of the form:
(a^2-b^2) which always factors to:
(a+b)(a-b), in this case we have:
(x+4)(x-4), we are told that width is (x+4) so the length is:
(x-4)
We know that one coin has 2 sides, this makes it so the expression is 2 multiplied by x, or 2x
Put the value of x = 6 to the eqpression 5x² + x - 7:
5(6)² + 6 - 7 = 5(36) + 6 - 7 = 180 + 6 - 7 = 179
<h3>Answer: 179</h3>
The decimals that represent the portions of the words that Tomas spelled correctly is 0.9 or 0.90.
I think the answer is 210.442
