(x-2)^2+20=0
(x-2)^2=-20
If you root both sides you will yield complex numbers (i, imaginary unit is such that i^2=-1),
x-2=20i
x=2+20i
and whenever x is a solution a complex conjugate x* is also a solution,
x*=2-20i
So the answer is A.
Hope this helps :)
Answer:
- lesser x = -1.84
- lesser x = -8.16
Step-by-step explanation:
Given the expression
Add 10 to both sides
Simplify
solve
Subtract 5 from both sides
so
Subtract 5 from both sides
Simplify
As -1.84 > -8.16
so
- lesser x = -1.84
- lesser x = -8.16
Answer:
32/3 cm³
Step-by-step explanation:
If the diameter is 4 cm, then the radius is 2 cm.
Use the sphere volume formula:
V = 4/3r³
Plug in the radius and solve:
V = 4/3(2)³
V = 4/3(8)
V = 32/3
So, the volume of the sphere is 32/3 cm³
240 X .1 = 24; 24/2 = 12; .1/2 = 0.05; .05 X 100 = 5%
Try 126 divided by 7. Then, do 128 minus the answer to 126 divided by 7.