Domain: ( -infinity, infinity ) , { x|x € R }
Range: ( -infinity, infinity ) , { y|y € R }
Answer:
22 years old
Step-by-step explanation:
The simplest form of <span>20/8 is 5/2</span>
Try this solution:
Step-by-step explanation:
1) for zeros of the function: x²-6x-7=0; ⇒ x₁=7; x₂= -1.
2) for the vertex of the function: x₀= -b/2a, where a;b;c - numbers from ax²+bx+c=0 (from x²-6x-7=0).
x₀=6/2=3;
y₀= (4ac-b²)/4a; ⇒ y₀= -16.
It means, the coordinates of the vertex are (3;-16).
10 percent of 140 pounds is 14 pounds. You can prove this with the operation of 0.1 (which is 10 percent in decimel) times 140. This will grant you 14.
The correct answer is 14
