Aball is kicked into the air and follows the path described by
h(t)= – 4.9t^2 + 6t + 0.6, where t is the time in seconds and h is the
height in meters above the ground. find the maximum height of the
ball. what value would you have to change in the equation if the
maximum height of the ball is more than 2.4 meters?

need this answered with steps shown

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.

Given right triangle abc, what is the value of tan(a)?