Answer:
a) Grade = 93, Standard score = 1.5
Grade = 62, Standard score = -1.6
b) Standard scores = 0.6, Grade = 84
Standard scores = 1.2, Grade = 90
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 78
Standard Deviation, σ = 10
Formula:
a) Grade = 93
Grade = 62
b) We have to find grades of student
Standard scores = 0.6
Grade = 84
Standard scores = 1.2
Grade = 90
Answer:
8 sqrt{10
Step-by-step explanation:
the rule of its surface area is
area of base which is s^2. s being the side of the square
s^2+2*s* sqrt{(s^2/4)+9}
so it is equal to
(2)^2+2*2*sqrt{(2^2/4)+9}
which will give u ur final answer