Suppose we were to test the following argument to determine whether or not it is deductively valid (a case of semantic entailment): \neg \neg p, \neg \neg q\rightarrow r\models \neg (p\vee r) ¬¬p,¬¬q→r⊨¬(p∨r)¬¬p,¬¬q→r⊨¬(p∨r). the first step of using the truth-tree test is to setup the tree into what is called the ``stack''. which one of the following formulas would not be in the initial stack:

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

more detail

step-by-step explanation:

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3