How many four digit numbers can be formed from the numbers 1,3,4,6,8 and if repetition of number is not allowed?

Total even numbers: 4⋅6⋅5⋅4=4804⋅6⋅5⋅4=480

Total 3-digit even numbers: 3⋅5⋅4⋅1=603⋅5⋅4⋅1=60

Total 4-digit even numbers: 480−60=420

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

answer: 0.26

i used the calculator on google