Solve the following system of equations using the elimination method, with step by step. x^2+y^2=13

x^2-y=7
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Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

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