Answer:
If you mean 9 x -2 it's -18
Step-by-step explanation:
Answer:
The correct answer is: Option C: Standard Deviation
Step-by-step explanation:
In a dataset, there are several methods that are used to determine the attributes of the data. One of them is standard deviation.
Deviation is derived from the word "Deviate" which means to move far.
Standard deviation is used to measure the distance of a data value from the mean i.e. how far a data value is from mean.
Hence,
The correct answer is: Option C: Standard Deviation
Answer:no solution the lines are parallel they have the same slope
Step-by-step explanation:
8x+2y=14
-8x. -8x
2y= -8x+14
Divide all by 2
Y= -4x +7
8x+2y=4
-8x. -8x
2y= -8x+4
Divide by 2
Y-= -4x+2
Since they both have -4x they have the same slope they never touch making them parallel
Answer:
about 77 cm^2
Step-by-step explanation:
From 3 sides, the area of a triangle is conveniently calculated using Heron's formula:
A = √(s(s -a)(s -b)(s -c))
where s is the semi-perimeter: s = (a+b+c)/2.
For the given values of a, b, c, we have ...
s = (a+b+c)/2 = (18 +11 +14)/2 = 21.5
A = √(21.5·3.5·10.5·7.5) = √5925.9375
A ≈ 76.9801 . . . cm^2
The area is about 77 square centimeters.
Answer:
2nd one
Step-by-step explanation:
