I'm pretty positive it would be the second one from the top
Answer:
The final temperature for the day was -16 degrees.
Step-by-step explanation:
6-12= -6
-6-10= -16
The reciprocal of 7 is 1/7, reciprocal of 8 is 1/8, and reciprocal of 9 is 1/9
Remember the rules of PEMDAS
1. First you want to evaluate the parentheses. (4-1) = 3
2. Square:
3^2 = 9
3. Multiply: 9*2 = 18
Your answer is C
1) it must be fulfilled that the denominator is different from zero, then for this expression
x^2 -9 ⇒ x^2-3^2 = (x-3)(x+3)⇒ (x-3)(x+3) = 0 ⇒ x = 3 o x = -3 , the dominium is all numbers reals except 3 and -3
