You would add and subtract them like a normal whole number, make sure to link up the decimals. You can use 0's as place holders if you need to. If you have two negatives your answer would be negative. When you subtract / add decimals just add them together. A positive plus a positive would be positive. If you have a positive plus a negative, subtract them and go with the sign of the greater number.
Answer: e. 0.3849
Step-by-step explanation:
We know that the mean lies exactly at the middle of the normal curve .
The z-score of the mean value is 0.
Also According to the standard normal probability table, the probability value of z=0 is P(z<0)=0.5.
And the probability value of z=-1.20 is P(z<-1.2) =0.1150697.
Now, the area under the normal curve between the mean and a score for which z= - 1.20 is given by :-

Hence, the area under the normal curve between the mean and a score for which z= - 1.20 is 0.3849 .
Answer:
Step-by-step explanation: five hundred two thousand and nine hundred
Answer:
The square root of 38.
Step-by-step explanation:
The square root of 38 is about 6.16.
The square root of 35 is about 5.91.
The square root of 45 is about 6.70.
The square root of 48 is about 6.92,
So the most reasonable one is the square root of 38, since it is much closer to 6.