The vertex of this parabola is at (1,3). Which of the following could be its equation?
10 -
(1.3)
- 10
10
-10

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document