Will give brainliest. given a mean of 61.2 and a standard deviation of 21.4, what is the z-score of the value 45 rounded to the nearest tenth? 0.8 −0.9 0.9 −0.8

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0