Standard deviation=4.
let the mean be 12 and the score be 0 (therefore 12 point difference.)
0-12/s=-3 (s being standard deviation)
-12/4 = -3
Answer:
The correct option is the last
Step-by-step explanation:
To answer this question we must remember the exponents properties
It is known that when we have division of exponents of equal base, then we place the same base and subtract the exponents.
In this problem we do the opposite, that is, we have an expression in the form of exponents and we write it as the division of exponents of the same base.
Then p2 can be written as:
Therefore the correct option is the last
Salutations!
A master plan is devised for -----
A master plan is devised for long term goals. You need to have a proper master plan in order to achieve your long term goal. Becoming a doctor needs to have a master plan.
Thus, your answer is option C.
Hope I helped (:
Have a great day!
The given equations are;
2x-y=8......(i)
3x+y=17......(ii)
Adding equation (i) and (ii), we get
5x=25 ( as +y and -y is canceled out during addition)
Hence x=5
Now
Substituting the value of x in equation (i)
2x5-y=8
10-y=8
Hence y=2
So, they'll ring together again in 120 minutes.
120 min = 2 h
9:45 + 2:00 =
11:45