Answer:
Step-by-step explanation:
<em>A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10</em>
 
        
             
        
        
        
Problem 1:
The temperature in one winter morning in Edinburgh was -6°C. By 2 PM, the temperature had increased by 5 degrees. What was the temperature by 2 PM?
Answer: 
Refer to the first number line. You would start counting five units to the right from -6. You would stop at -1 and that is the answer to the question
Problem 2:
Anna had $4 balance in her bank account. She used her debit card to purchase a meal deal that costs $5. Her bank account allows overdraft. What amount would her bank statement shows if Anna had not deposit any money since her last purchase?
Answer: Over draft means that a bank allows their customer to make purchase more than what they've got left in their balance but this means the customer will be in debt to the bank. Anna had $4 in the bank and she made a purchase of $5. Her bank statement would show
4 - 5 = -1 
Using the number line, you would start from 4 and count back 5 to get to -1
 
        
        
        
Answer:
No
Step-by-step explanation:
<u>Step 1:  Set x to 5 and check</u>
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So... 5 is not a solution
Answer:  No
 
        
                    
             
        
        
        
Ummm i need more information to help you
        
             
        
        
        
Answer:
Hello! answer: x = 16
Step-by-step explanation:
16 × 16 = 256
12 × 12 = 144
256 + 144 = 400 
√400 = 20 therefore x = 16 hope that helps!