A group of students was asked, "How many children are in your family?" Here is a photo below to help you answer the questions!

How many students responded to the questions?

What percentage of the students have more than one child in the family?

Write a sentence that describes the distribution of the data shown on the dot plot.

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

Which of the following parabolas opens down?

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?