-x+y-3z+4w=6^"dfv
+xd-y+23z=0
so x=1 and y=3
Answer:
<h2>288 ft³</h2>
Step-by-step explanation:
The formula of a volume of a prism:

where
<em>B</em><em> - area of a base</em>
<em>H</em><em> - height of a prism</em>
<em />
In the base we have the right treiangle. The formula of an area of a right triangle is:

where
<em>a, b</em><em> - are legs</em>
We have

Substitute:

Calculate the volume.
Substitute


Answer:
x = 13
y = 8
Step-by-step explanation:
Answer:
If P is a subset of Q, then by definition, every element of P is an element of Q. So, as Q contains P, every element in either P or Q is in Q, so the union is Q. For the second, every element of P and Q is in P, so the intersection is P.
Step-by-step explanation: