Answer:
see explanation
Step-by-step explanation:
If the triangle is right then the square of the longest side (hypotenuse) will equal the sum of the squares of the other 2 sides.
longest side is x² + 1, then
(x² + 1)² = + 2x² + 1
The sum of the square of the other 2 sides
(x² - 1)² + (2x)²
= - 2x² + 1 + 4x² =
+ 2x² + 1
Hence triangle is right
Answer:
Nickel = 12
Quarters = 26
Step-by-step explanation:
Given
<em>Represent Nickel with N and Quarters with Q</em>
--- <em>It's 14 more quarters; not 143</em>
Required
Determine the quantity of each coin
First, we have to know that:
-- (1) ---- By converting N and Q to dollars;
Substitute 14 + N for Q in (1)
Open Brackets
Collect Like Terms
Divide through by 0.3
Recall that: