Answer:
Exactly one solution
Step-by-step explanation:
4x -2y = 8
2x +y = 2
Multiply the second equation by 2
4x +2y = 4
Add the two equations together
4x -2y = 8
4x +2y = 4
-------------------
8x = 12
x = 12/8
We know there will be one solution
Answer:
Sa = 1.5*V
Step-by-step explanation:
We have that the surface area of a sphere has the following formula:
Sa = 4*pi*r^2
we know that r = 2, so if we replace it, we're left:
Sa = 4*pi*(2^2)= = 4*pi*4
Sa = 16*pi
Now, the volume has the following formula:
V = 4/3*pi* r^3
Replacing it is our job:
V = 4/3*pi* (2^3) = 4/3*pi*8
V = 32/3*pi
Now, Sa/V, it would remain:
Sa/V = 16*pi / 32/3*pi
Sa/V = 48/32 = 1.5
Therefore, Sa = 1.5*V
We have
we have x is less than or equal 50/7
Answer:
K = 5m+y/x
Step-by-step explanation:
Let's solve for k.
y=kx+1m(2−7)
Step 1: Flip the equation.
kx−5m=y
Step 2: Add 5m to both sides.
kx−5m+5m=y+5m
kx=5m+y
Step 3: Divide both sides by x.
kx/x = 5m+y/x
Therefore, k = 5m+y/x
