Answer:
Step-by-step explanation:
the general equation of a circle is
with (h,k) being the centre of the circle and r the radius
Answer:
Step-by-step explanation:
The given system of linear equations is:
We have to solve the equations for the values of .
Let us use elimination method in which we eliminate one of the variables from the two variables.
For this, let us multiply the first equation by and second equation by
Now, the equations become:
Now, let us add (1) and (2):
Using the equation:
Putting value of :
So, the answer to the system of linear equations is:
You want to find Pr[-2 < <em>Z</em> < -1].
The table tells you that
• Pr[<em>Z</em> < 0] = 0.5000
• Pr[<em>Z</em> < 1.00] = 0.8412
• Pr[<em>Z</em> < 2.00] = 0.9772
• Pr[<em>Z</em> < 3.00] = 0.9987
We have
Pr[-2 < <em>Z</em> < -1] = Pr[<em>Z</em> < -1] - Pr[<em>Z</em> < -2]
(because the distribution of <em>Z</em> is continuous)
… = Pr[<em>Z</em> > 1] - Pr[<em>Z</em> > 2]
(by symmetry of the distribution about its mean)
… = (1 - Pr[<em>Z</em> < 1]) - (1 - Pr[<em>Z</em> < 2])
(by definition of complement)
… = Pr[<em>Z</em> < 2] - Pr[<em>Z</em> < 1]
… = 0.9772 - 0.8412
… = 0.1360 ≈ 0.14 … … … (B)
Answer:
6x+1=3(2x-4) is no solution.
Reason:
6x+1=6x-12
-6x -6x
1≠-12
The answer is just the first option. Every equation has a solution.
The third option is an infinite solution. The first option is the only one with no solution.
Step-by-step explanation:
hope i helped u
if not sorry
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