Answer:
196 and 280
Step-by-step explanation:
Answer:
x = 3, -2
Step-by-step explanation:
To help us factor, we can split the middle term up into the sum of the terms -3x and 2x:
From there, we can factor out an x from the first two term and a 2 from the last two to obtain the equation
Factoring out an (x - 3) from each term gives us the equation
At this point, we can divide by either x - 3 or x + 2 to obtain the two equations
and 
Solving both for x gives us the solutions x = 3 and x = -2. We can verify these by substituting them back into the original equation:
Answer:
B
Step-by-step explanation:
i think thats it
It's not a solution to the system above
Answer:
mean
Step-by-step explanation:
Normal distribution curves Is a distribution curve having different mean values with a standard deviations
the correct option: mean
A normal distribution curve is standardized as follows:
(a) The mean value of the unstandardized curve is made the origin, thus making the mean value, x, zero.
(b) The horizontal axis is scaled in standard deviations. This is done by letting z= x−x/ σ , where z is called the normal standard variate, x is the value of the variable, x is the mean value of the distribution and σ is the standard deviation of the distribution.
