Assuming the question is "at what rate did the chemist heat the solution," the answer is the chemist heated the solution at +4.5 degrees Celsius per minute.
75-21=54
54/12=4.5
Answer:
9
Step-by-step explanation:
42 / 7 = 6
48 / 8 = 6
54 / 6 = 9
Problem Statement
We are asked to find the critical t-value for a confidence level of 80% and sample size of 17.
Method
To solve this, we simply need to do two things:
1. Calculate the degrees of freedom:
The answer is A because if you look at the other points you can see a pattern that they are opposites so A is you answer <span />
Answer:
QPR = 73
Step-by-step explanation:
there opposite angles so there equal, therefore we set them equal to each other
(6x+25)=(10x-7)
-4x= -32
x= 8
plug in
6(8)+25
73