Find the number of pairs $(z_1,z_2)$ of complex numbers such that: $z_1 z_2$ is pure imaginary $\frac{z_1}{z_2}$ is real $|z_1|

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41