SAT score the national average SAT score( for verbal and math) is 1028. suppose that nothing is known about the shape of the distribution and the standard deviation is 100. if a random sample of 200 score were selected and the sample mean calculated were 1050. would you be surprised? explain

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

Which of the following statements is not true? a. parallel lines are lines in the same plane that never intersect. b. congruent figures have the same shape and same size angles and sides. c. similar figures must have the same shape and the same size. d. a rotation is when you turn a figure around a certain point.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²