WinfredUmanzor WinfredUmanzor
  • 22-04-2014
  • Mathematics
contestada

If n is even, which of the following cannot be odd?

a) n + 3
b) 3n
c) n² - 1,
Can you please explain with some details?

Respuesta :

runescapememo8 runescapememo8
  • 22-04-2014
b) 3n
well, first of all, you can try it out with numbers like 4,6,28...
3(4)
=12
3(6)
=18
3(28)
=84

also, you can disprove the other theories
a) 0+3=3 (odd)

b) 4^2-1=15 (odd)



Answer Link

Otras preguntas

Part ALook at the window on the left side of the simulation. It shows the reaction A+BC AB + C. How does this reaction differ from the reaction by whichammonia
What limits the power of the national government?
The side lengths of a triangle are given by the expressions 5x + 3, 5x + 5, and 3x – 2. Write and simplify a linear expression for the perimeter of the triangle
Eric wants to sell his car that he paid $7,000 for 3 years ago. The car depreciated, or decreased in value, at a constant rate each month over a 3-year period.
Your environment can affect your health. Now that you have made a personal wellness plan, consider how you can make your environment "well." (12 points) 1. How
For f(x) = 2x+1 and g(x)=x^2-7, find (f*g)(x).
What is the total number of atoms in this formula:CaCO3 three four five six
. Find the value of x. Round your answer to the nearest tenth. sin38=7/x
Which expression is equivalent to
What equation can be used to solve for c?c = (5)cos(35o) c = 5/cos(350), c = (5)sin(35o) c =