we know that
If two numbers have a sum of zero, then we say they are additive inverses.
so
z+0.8=0 -------> the sum is equal to zero
z=-0.8------> the additive inverse of z is equal to -0.8
using a graph tool
see the attached figure
<u>the answer Part a) and part b) in the attached figure</u>
Answer: 28
Step-by-step explanation: 6 faces, 12 edges, 8 vertices
Answer:
The equation is y=2x + 2
Step-by-step explanation:
4x+2y=7
2y=-4x+7
y=-2x+7/2
Hence, the gradient =-2
Note that: parallel lines share the same gradient
sub m(gradient)=-2 and the point (1,0) into y=mx+c
0=-2(1)+c
c=2
Therefore, the equation in the form of y=mx+c is y=-2x+2
X = k x y
21 = k x 3
k = 7
x = 7y
x = 7(10)
x = 70
Answer:
The solution is
Step-by-step explanation:
The given equations are
and
The graph of the two equations intersects at 
as show in the graph in the attachment.
The point of intersection of the two graphs is the solution to system of equations.
Hence the solution is
