The grades received by 200 students follow a normal distribution. The mean of the grades is 70%, and the standard deviation is 7%.
and the number of students who got a grade higher than 84%
The number of students who received a grade greater than 70% is about
is about

answer4 to the second power is 16

and 4 to the third power is 64,

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

tried on you are knowing that we can't leave the picture in the graph ok no problem now you need to send it in the question group