A cell phone charger uses 5.6 Joules of energy per second when plugged
into an outlet but only 1.7 Joules of energy per second actually end up in
the cell phone battery. What is the efficiency of the charger?

1.) 30%

2.) 3.29%

3.) 329%

4.) 9.59%

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points