Answer:
$14.7
Step-by-step explanation:
3 x 4.9 = 14.7
We know angle x=y(vertically opposite angles)
Since 3 angles lie on a straight line,
y+60+70=180 (linear pair)
y+130=180
y=180-130
y=50 degrees
Absolute deviation is 92.40
Rearrange numbers from least to greatest to avoid confusion.
108, 112, 122, 145, 160
Mean = (108 + 112 + 122 + 145 + 160) / 5
= 647 / 5
= 129.40
Absolute deviation : (number - mean)
*absolute means that a number is always treated as a positive number contrary to its actual value
108 - 129.40 = 21.40
112 - 129.40 = 17.40
122 - 129.40 = 7.40
145 - 129.40 = 15.60
160 - 129.40 = <u> 30.60</u>
total absolute deviation 92.40
Mean absolute deviation = 92.40 / 5 = 18.48
Answer:
5 1/3
Step-by-step explanation:
2 1/3+(2 2/3) (1 1/8)= 5 1/3
Answer:
= 0
Step-by-step explanation:
-3 = x^2 + 4x + 1
0 = x^2 + 4x + 4
a = 1
b = 4
c = 4
plug the numbers into the equation to find the discriminant value...
4^2 - 4(1)(4)
16 - 16 = 0
therefore your answer is 0
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