The correct answer is ASA.
If you look at the steps given in the proof, you will see that are are given two different angles that are congruent. You also have a side that is in between the two angles. Therefore, we have ASA.
To get the variance, start with finding the mean of your data points:
(23 + 19 + 22 + 30 + 28) / 5 = 24.4
Now take each data point and subtract the mean from it, then square that value:
23 - 24.4 = -1.4 * -1.4 = 1.96
19 - 24.4 = -5.4 * -5.4 = 29.16
22 - 24.4 = -2.4 * -2.4 = 5.76
30 - 24.4 = 5.6 * 5.6 = 31.36
28 - 24.4 = 3.6 * 3.6 = 12.96
Now get the average of those new numbers. That is your variance:
(1.96 + 29.16 + 5.76 + 31.36 + 12.96) / 5 = 16.24
The standard deviation will be the square root of the variance:
√(16.24) = 4.0299 (rounded to 4DP)
Its A or 6 because 30 divided by 5 is 6
Answer:
2x-7
Step-by-step explanation:
Answer:
B.)7√5
Step-by-step explanation:
2√5+ 5√5 = 7√5
we simply let √5 = x
therefore;
2√5+ 5√5 = 2x + 5x
2x + 5x = 7x
but x = √5
2√5+ 5√5 = 7√5
