15. 
Step 1: Distribute the subtraction sign to all the numbers in the second set of parentheses...
Step 2: Combine like terms (
's go with 's)
Step 3: Combine like terms (
's go with 's)
Step 4: Combine like terms (normal numbers go with normal numbers)
1 + 2
3
You were correct!
16. 
I don't really know how to explain this one but I got: (7m-6n)(7m-6n)
K = 70 i did 6 x -5 which was -30 then -30+100 = 70
< because a negative is less than a positive
Answer:
Honestly im not sure
Step-by-step explanation:
5.2°C = (273 + 5.2)k = 278.2k
Change in temperature = 368k -278.2= 89.8k
q (heat energy) = MCp∆T
When Cp of water =1046J
q = 7.59 g × 1046J × 89.8k
= 712, 934.772Jgk-1 = 713kJgk
When Cp of water =250cal
q = 7.59 g × 250 × 89.8k = 170kCalk
Answer:
- Point A: (1,3)
- Point D: (-1,-3)
Step-by-step explanation:
The value of y in the (x, y) pair must be 3 times the value of x if the point is to be on the line. That is the case for points A, D.
