The marks obtained by students of a class in a test are normally distributed with a mean of 60 marks and a standard deviation of 5 marks.

About what percent of students have scored more than 75 marks?
a.
0.5
c.
15.5
b.
2.5
d.
34

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Me! i will mark you brainliest if you are right and show your i don't get polynomials and all the other stuff. multiply and simplify.2x(^2)y(^3)z(^2) · 4xy(^4)x(^2)show your