It's gonna be 5 - (2 + 4 -2)
according to order of operations, we have to solve inside the parentheses/brackets first (from left to right)
therefore, it will be
5 - (6 - 2)
=5 - (4)
Next, distribute the negative to the four and add normally.
= 5 - 4
= 1
Answer:
a) 
b) 1.5 hours after thickness will be 2 inches.
Step-by-step explanation:

Answer:

Step-by-step explanation:
cot(-11pi/6)=cot(-pi-5pi/6)= -cot(5pi/6)=cot(pi/6)=
≈1.73
Answer:
Definition: The enclosing boundary of a curved geometric figure, especially a circle.
Step-by-step explanation: