Y = 0
x = ?
y= x^2 -6x +9
0 = x^2 - 6x +9
(x -3)
(x -3)
(x-3)(x-3)
x = 3
y = 3^2 - 6(3) + 9
y = 9 - 18 + 9
y = 18
Answer
x= 3, y = 18
hope this helps :D
X-2
Hope this helps!
Vote me brainliest!
Answer: See below.
Step-by-step explanation:
The formatting is likely incorrect for these two options:
y=(x−1)2, and
y = ( x − − 1 ) 2
I'll assume they were meant to be:
y=(x−1)^2, and
y = ( x + 1 )^2
In this case they would be non-linear, since y depends on the value of
Use a "^" sign to indicate raised to a power: x^2 means .
y=(x−1)2 means y = 2x - 2
y=(x−1)^2 means y =
Answer:
A) Mean = 135 Variance = 62 Standard Deviation = 8
Step-by-step explanation:
Given that :
Proportion (p) = 54%
Sample size (n) = 250
Using Normal approximation :
Mean = np
Mean = 250 * 0.54 = 135
Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46
Variance = (250 * 0.54 * 0.46) = 62.1 = 62
Standard deviation = √variance = √62.1
Standard deviation = 7.8803553 = 8
4x5 is 20, a 3rd grader knows this..