Solving a word problem using a quadratic equation with irrational roots. A ball is thrown from an initial height of 7 feet with an initial upward velocity of 21/fts. The ball's height h (in feet) after t seconds is given by the following. h=7+21t-16t²

Find all values of t for which the ball's height is 13 feet.

Round all answer(s) to the nearest hundreth

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

How do i put 3(x+7) in distributive property

20 ! jason orders a data set from least to greatest. complete the sentence by selecting the correct word from each drop-down menu. the middle value of the data set is a measure and is called the part a: center b: spread part b: mean a: mean absolute deviation b: median c: range