Pls show workings
Due asap

Use Pythagorean Theorem to find the distance between the two points

where r is the distance between the two points

Δx = 6-4 = 2

Δy = 3-(-1) = 4

2²+4²=r²

4+16=r²

20=r²

√20=r

r=4.47

r=4.5

4.5÷2=2.25 (halfway)

∴The distance between the cafeteria and the bathrooms is 2.25 units

Hopefully you understand how I got this answer.  

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb