What must be done to the wires used to make an electromagnet before they connect A. The terminals of the battery must be coated with an insulating material
B. The wires must be rubbed with sandpaper to make their surfaces rough
C. The ends must be marked to show which end to attach to each terminal of the battery
D. The insulation must be removed from the ends of the wires

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

Needmax 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.

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years