Subtract 7 from -2 and 7 since 7 is currently a positive number
Your equation should now look like this:
-3x=-9
Next you have to divide by 3 on each side to get:
X=3
The mean is 132. (the average of all the numbers)
to find standard deviation:
[(147-132)^2 + (141-132)^2 + (120-132)^2 + (124-132)^2 + (128-132)^2 ] ALL OVER 5
you get 106 then square root it to get 10.29563014
Answer:
Option c
because
others aren't even interior angles
Answer:
a) If a=20 the system has no solutions.
b) If a≠20 the system has exactly one solution.
Step-by-step explanation:
The augmented matrix of the system is .
Using rows operations we obtain the echelon form of the matrix, ie,
Since the echelon form of the matrix does not have free variables then the problem has exactly one solution or has no solutions.
a) If a=20 the system has no solutions because in the last equation solving for x3 it has that 0=24. Then the system is inconsistent.
b) If a≠20, the the system has exactly one solution that is obtained solving the system of the echelon form matrix.
Answer:
The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle.