Answer: 2((x+y)-21)
Calculation/Explanation:
Twice the sum of x and y decreased by 21 means that you must add x and y first before decreasing by 21. The last step is to double the whole equation that we just performed.
Answer:
0.012
Step-by-step explanation:
Have a good day.
Answer:
Hence, the probability that he will draw the letters A-X-E-L, in that order is:
Step-by-step explanation:
It is given that:
Axel writes each letter of his name on a tile and places the 4 tiles in a bag.
Now he draws each tile out of the bag at random.
We are asked to find the he probability that he will draw the letters A-X-E-L, in that order.
Total number of outcomes of drawing tiles=4!=4×3×2×1=24.
The number of ways of drawing A-X-E-L in the same order is:1.
Hence, the probability is given by:
Probability=(Number of favourable outcomes)/(Total number of outcomes)
Hence, Probability=1/24
Hence, the probability that he will draw the letters A-X-E-L, in that order is:
Answer: Mean- 45
Median- 45
Mode- Nil
Range- 6
Step-by-step explanation:
Mean= sum of data set/number of data set= 42+43+44+45+46+47+48/7 =45
Median= arrange in an ascending order, then pick the middle data or number= 45
Mode- the number with highest frequency, in the case of this question, all number appeared once, hence no mode.
Range= difference between the highest and lowest value in a data set= 48-42=6
Answer: 36
Step-by-step explanation:6*6=36