The mean number of merits in a class of29 students is45 . A new student joins the class, and after a few weeks the mean number of merits of the 30 students is44 . Only the new student got merits during these few weeks. How many merits does the new student have? merits

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

noncoplanar points are points that do not lie on the same line.

do it yourself this is easy

step-by-step explanation: