11.5 beause you take the average of 12 and 11
Answer:
Step-by-step explanation:
this triangle is regular one
- we can't apply the pytahgorian theorem 5²+6²≠7²
- the angles have different sizes 75≠60≠45
- the sides have different lengths 5≠6≠7
Answer:
You are correct 3(8n-8) and 24n-24 is the right answer
Step-by-step explanation:
Use PEMDAS method to execute operations in the following order:
- Parentheses
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
First equation:
12 + (38 - 18)2 = 12 + 20 × 2 = 52
Second equation:
(12)2 - 6(2 - 23) = 24 - 6(-21) = 24 + 126 = 150
Hope this helps.