15* 60= 900, so the amount of water is decreased by 900 every hour.
Answer:
a. (b) 2.5
b. (b) 1.89
Step-by-step explanation:
E(X) =0(0.05)+1(0.25)+2(0.35)+3(0.15)+4(0.15)+5(0.15)= 2.5
Answer: 
Step-by-step explanation:
Given the following expresion provided in the exercise:
You can follow these steps in order to evaluate it when 
and 
:
1. You need to substitute and into the given expression:
2. Now you can solve the mutiplication:
3. Since 
, you get:
4. You must solve the division. Divide the numerator 16 by the denominator 4. Then:
5. And finally, you must solve the addition. So, you get this result:
Answer:
In a study to determine whether how long a student sleeps affects test scores, the independent variable is the length of time spent sleeping while the dependent variable is the test score. You want to compare brands of paper towels, to see which holds the most liquid.
hopes it helps
Answer:
Congrats?
Step-by-step explanation:
I don´t understand the question
