Which mathematical advancement allowed calculations to be more easily understood? the invention of the graph
the formula to describe shapes
the creation of negative numbers
the standardization of math symbols

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?

Which statement best explains how the narrator interacts with the setting? a.the setting makes him lose hope b. the setting makes him envious c. the setting makes him feel angry d. the setting makes him gain confidence the answer is a

What was a major failing of the united states government under the articles of confederation?