Fifteen percent of residential central al conditioning units installed by a supplier need additional adjustments requiring a service call. Assume that a recent sample of seven such units constitutes a binomial process, Interest centers on X the number of units among these seven that need additional adjustments. The mean and variance of X are, respectively

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

For which rational expression is -2 an excluded value of x?

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.