A60-watt light bulb uses 60 watt hours of electricity in 1 hour. suppose everyone in the

united states left one unneeded 60 watt light bulb on for one hour every day for a year.

9. electricity is billed in kilowatt hours. so 60 watt hours is equal to sixty

divided by one thousand. express the electricity used by a 60-watt light

bulb in one hour in kilowatt hours in scientific notation.

k

step-by-step explanation:

domit

answer:

c) the x-coordinate of the center of the circle increases by 3

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)