https://www.mathpapa.com/algebra-calculator.html?q=x%3D10x%2F2%2B5
Step-by-step explanation:
Answer:
(x+7)
Step-by-step explanation:
(x+7)(2x+1)=2x^2+14x+x+7=2x^2+15x+7
The correct answer is C "never."
The hypotenuse in a 30-60-90 triangle is the shorter leg doubled. So, it's 2x where x is the shorter leg.
In fact, the square root of two is not used to calculate any other sides in a 30-60-90 triangle. The shorter leg is x, the medium leg is x√3, and the hypotenuse is 2x.
