1) If we let the lengths of the legs be x and 2x, then by the Pythagorean theorem,
This means that the length of the hypotenuse is:
2) (Diagram attached) We know that
(in cm)
3) From the Pythagorean identity,
4)
Answer:
Step-by-step explanation:
6x-10x^2+3-(5x^2+3x-4)
when there is a - in front of an expression in (), change the sign of each term in the expression
6x-10x^2+3-5x^2-3x+4
now collect like terms
3x-10x^2+3-5x^2+4
3x-15x^2+3+4
3x-15x^2+7
now use the commutative property to reorder the terms
-15x^2+3x+7
=-15x^2+3x+7
Answer:
Each length of the rope will be 0.8 feet long
45 + 65 = 5m + 65
45 = 5m
m = 9