<span>The given expression is (–1 + i) + (21 + 5i) : It demonstrates the use of the commutative property of addition in the first step of simplifying the expression. The property of commutativity is that the bracket can change its position i.e. (i + 21 )+ (5i-1)</span>
Answer : option D
we need to find out the graph shows a mixed-degree system with exactly one solution
The solution of two graphs will be the intersection of two graphs
In the first graph,
There is no intersection of both circles, So no solution
second graph,
The circle intersects the parabola at two point, so two solution for this graph
Third graph,
The circle and line does not intersects, so no solution
Fourth graph,
Both parabola intersects at one point, so one solution for this graph
So option D has exactly one solution
Answer:
<h2>L= 7.75 m</h2>
Step-by-step explanation:
<em>This problem bothers on the mensuration of solids, cube</em>
Step one:
The volume of the tanks will hold 60L of water
hence the volume of the tank is 60L
we know that the expression for the
volume of cube = L*L*L
Volume of cube = L^3
60= L^3
L= √60
L= 7.7459
To the nearest 0.01m we have L= 7.75 m
B) p=9t
he gets paid $9/hr, and his pay depends how many hours he works.
If wy is congruent to xy, then from w to y is equal to the distance between x and y. According to the figure, both distances are 3m-4 each. Therefore the perimeter is the sum of the three sides, namely:

Solving for m:




Finally:
<span>wx is the distance </span>