The scores on a test are normally distributed. the mean of the test is 750 and the standard deviation is 70. by using the empirical rule, what scores fall 3 standard deviations from the mean? a.610 and 820b.610 and 960c.680 and 820d.540 and 960

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Question b of 10which of the following describe an angle with a vertex at a? check all that applyo a. labcов. савd dooo c_baco d. zacb

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.