Answer: Cells typically communicate using chemical signals. These chemical signals, which are proteins or other molecules produced by a sending cell, are often secreted from the cell and released into the extracellular space. There, they can float – like messages in a bottle – over to neighboring cells.
Step-by-step explanation:
No, the x in 12x2 and 15x could still be factored.
Answer: x=7
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−(12+4x)=−40
−4x+−12=−40(Distribute)
−4x−12=−40
Step 2: Add 12 to both sides.
−4x−12+12=−40+12
−4x=−28
Step 3: Divide both sides by -4.
−4x
−4
=
−28
−4
The answer is x= +- 2 square root of 2 + 3
