Answer: The answer to the first question is 20
Step-by-step explanation:
Answer:
28.9°c
Step-by-step explanation:
Answer:
This answer is A
A. X= -1
Step-by-step explanation:
-1 is equal to-1
B is true because 0-(-x) = 0 + x = x
<h2>
Explanation:</h2>
Let's use a trial and improvement method to find this solution.
Step 1. Let's choose x = 8.5
Substituting into the equation:

Step 2. Let's choose x = 8.4
Substituting into the equation:

Step 3. Let's choose x = 8.3
Substituting into the equation:

Since the sign of the equation changes from positive to negative when evaluating from 8.4 to 8.3, then x = 8.3 seems to be a reasonable value. Finally, the solution to 1 decimal place is: