Answer: 28 points
Step-by-step explanation:
Given : Lexie scores an average of points in a pinball game, and her points in a pinball game are normally distributed.
Let x be the random variable that represents the her points in a pinball game.
, where s is the standard deviation.
Lexie scores 471 points in a game, and this value has a z-score of −2.
i.e.
Hence, the standard deviation= 28 points
I cannot see the image no matter what I do
5.0625
Step-by-step explanation:
Step 1:
The given expression can be written as
On solving the above expression
adding all the X terms and constant terms individually
160X + 90 = 900
Step 2:
160X = 810
X = (810/160) =5.0625
Answer:
y=(x+13)/3
Step-by-step explanation:
the question is not quite clear, i think u mean y= -3x + 4
then, the slope of the line perpendicular to the given line is m1.m2= -1, hence, -3.m2= -1 m2 = 1/3
y-5=1/3(x-2) y=x/3+13/3 or y=(x+13)/3
Answer: Sorry, I'm not the best at this and I don't have a full answer but I can offer a tip!
X does not repeat if it is a function.
So, if you are finding the function it is one where x is different every time
Step-by-step explanation: