If r=[x, y,z] and r0=[x0,y0,z0], describe the set of all points (x, y,z) such that ir-r0i =1.

The points (x,y,z) that respond to Ir-r0I =1, are all that describes the form with:

-1+x₀<x<1+x₀

-1+y₀<y<1+y₀

-1+z₀<z<1+z₀

Step-by-step explanation:

All points required in this problem came from applying the definition of modulus of a vector:

Ir-r0I =1.

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

step-by-step explanation:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.