Answer:
False
Step-by-step explanation:
To determine whether the statemaent "If
is true, then
is also true" holds, you can form the truth table:

When the result of the column
takes value 1 (true), the result of the column
is not always 1, then the statement is false.
Answer:
(2,3)
Step-by-step explanation:
<h3>9)</h3><h3>5 planes</h3>
<h3>10)</h3><h3>2 planes</h3>
<h3>11)</h3><h3>BCED</h3>
<h3>12)</h3><h3>Yes , they belong to plane (w)</h3>
Don't know if it's right, but do let me know! use percentage to visualise your workings. :)