12 3/4 + 5 = 17 3/4 since you only have to add the whole numbers
same for subtraction
12 3/4 - 5 = 7 3/4
Answer:
<em>16.00 grams/mole Oxygen * (1 mole/6.022x1023 atoms) = 2.66 x 10-23 grams. Any slight differences are due to the accuracy used for the atomic.</em>
<em> Step-by-step explanation:</em>
Answer:
i dont know it srry
Step-by-step explanation:
We are given with the expression ( tan x + cot x )^2 and is asked to simplify the given expression. cotangent is the inverse of tangent. Hence, <span> ( tan x + 1/tan x )^2 or ((tan^2 x + 1)/ tan x )^2. Further simplification using other identities could lead to sec^2x csc ^2 x. </span>