Answer:
The probability is 0.017429
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)/SD/√n
In this case;
x = 273
mean = 276
SD = √(variance) = √81 = 9
n = 40
Substituting these values into the z-score formula, we have that;
z = (273-276)/9/√40
z = -2.11
So we proceed to get the probability
the probability in this case is;
P( z < -2.11)
We can use the normal distribution table for this
Our answer will be
P( z < -2.11) = 0.017429
Answer:
$23.31
Step-by-step explanation:
$21 x 1.11 = $23.31
I got 1.5, but I could be wrong.
11c-8
11c is the product of both 11 and c, and the 8 less than the product is shown with -8
Answer:
Below
Step-by-step explanation:
here is the factored form of a quadratic equation :
f(x) = a ( x +/- n ) ( x +/- n )
We can just plug in what we know into this form :
f(x) = 2 ( x + 4 )( x + 1 )
If you were to plug this into desmos it will show you the graph!
Hope this helps!
