Answer:
1st and 2nd option are the correct answers.
Answer:
a=±5
Step-by-step explanation:
25=5^2
Given that, x^2−10x+25=x^2−10x+5^2
Identity: a^2−2(ab)+b^2=(a-b)^2
Here, a=x and b=5
∴=(x−5)^2
Hope this helps
Answer: Vertical angles.
Have a good day!
To find median . . . list the number in order from least to greatest
10 , 11, 12, 12 13, 15
Then cross of a number from each side until you get to the middle number or middle 2 numbers.
IF there are 2 numbers add them together and divide by 2
12 + 12 = 24
24 / 2 = 12
Your median is 12
To find mean (this is the same as average) add all the numbers to get a total.
10 + 11 + 12 + 12 + 13 + 15 = 73
Then count the number of items added . . .6
Take the total and divide by the items counted
73 / 6 = 12.1666
Your directions say to round to the nearest tenth place.
12.166 = 12.2
