The total electrical resistance R of two resistors connected in parallel with resistances R1 and R2 is given by the equation If the total resistance is 10 ohms, and the first resistor has a resistance of 30 ohms, then how many ohms are produced by the second resistor.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

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.

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?