1.924 and 5.77
step 1: find the mean by adding up all the numbers and divide the sum by the number of numbers.
step 2: find the difference between each number and the mean, square the difference
step 3: add up all the results of step 2, divide the sum by (n-1), n is the number of numbers.
step 4: square root the result of step 3.
it is a long process.
Answer:
45
Step-by-step explanation:
They add up to 90, so 90 - 45 = 45 degrees
Answer:
9x2 = 18
Step-by-step explanation:
Im not sure what you mean lol
Answer:
0.4 or 2/5
Step-by-step explanation:
Dana surveyed 20 students in total and out of those 20 only 8 got an A
so:
now if you simplify it 
and if you simplify it again:
or 0.4 in decimal
What do you mean by saying “this leaf” and what is the difference between A and B or C and D answers
