Answer:
x = 5/4
Step-by-step explanation:
(x)4/5=1
Simplify both sides of equation
4/5x=1
Multiply both sides by 5/4
5/4*4/5x = 1*5/4
x=5/4
Answer:
Step-by-step explanation:
Okay!
A graph representing the function :
f(x)=x(x+2)
I will describe the graph for you!
the points on this graph are : (-3,3),(-2,0),(-1,-1),(0,0),(1,3)
the graph also creates a U shape!
You must substitute x+3 for x, so x² becomes (x+3)².
You could work this out to be x²+6x+9 if that is asked.
The graph of (x+3)² is the graph of x² shifted to the left by 3.
If this seems counterintuitive, think of the value you must choose for x to make the outcome 0. It used to be 0²=0, but now it is -3 since (-3+3)²=0, so 3 positions to the left.
The Pythagorean theorem tells you
... (height of ladder)² + (distance from house)² = (length of ladder)²
... (height of ladder)² + (8 ft)² = (12 ft)²
... height of ladder = √(12² - 8²) ft
... height of ladder = √80 ft ≈ 8.94 ft
