I’m pretty sure it’s
6x-10y+x^2-21
Unless I read it wrong then sorry
Answer:
6 3/8
Step-by-step explanation:
Convert the fractions so that the denominators match.
, then 

, then 
Add up the fractions.

Answer: 0.6065
Step-by-step explanation:
Given : The machine's output is normally distributed with


Let x be the random variable that represents the output of machine .
z-score : 
For x= 21 ounces

For x= 28 ounces

Using the standard normal distribution table , we have
The p-value : 

Hence, the probability of filling a cup between 21 and 28 ounces= 0.6065
Answer:
<h3>
The second: f(-5) = 2</h3>
Step-by-step explanation:
x = -5
-5 < -4 and if x<-4 then f(x) = - 2x - 8
so:
f(-5) = - 2(-5) - 8 = 10 - 8 = 2
If I am understanding the question, and assuming the living room is a rectangle, then the border should be 80 ft