Answer:
Step-by-step explanation:
The average is 81 a low B, but if you throw out the low score it rises to 88.8, a high B.
I would use the median 88, 89 since it is higher and is a more accurate representation of the majority of the class
Answer: 4units^2
Step-by-step explanation:
B*H/2
4*2/2= 4
So 4units^2 is the area
Answer:
Step-by-step explanation:
2 x 2
Dimensions of the product = No.of rows of first matrix x No. of columns of second matrix
we have

Divide both sides by 


Square root both sides


so
the solutions are


therefore
<u>the answer is the option</u>
x = 2/3 and x = -2/3