which of the following are true statements? 1. the standard deviation is the square root of variance 2. the standard deviation is zero only when all values are the same 3. the standard deviation is strongly affected by outliers

Write the converse of the following statement: if the trees have no leaves, then it is fall. if the trees have no leaves, then it is fall. the trees have no leaves, therefore it is fall. it is fall since the trees have no leaves. if it is fall, then the trees have no leaves.

Is this a polynomial function? i need to know asap

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?