A 120-watt light bulb uses about 0.1 kilowatt of electricity per hour. if electricity cost $0.20 per kilowatt hour, how much does it cost tp have the bulb on for an hour?

Two number cubes are rolled- one blue and one yellow. part a) find the probability that the blue cube is less than 3 and the product is 8. part b) is this event independent or dependent? explain why. your

Acylinder has volume 45π and radius 3. what is it’s height?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?