Given that the function is given by:
f(x)=2x+x
when x=3, then:
f(3)=2(3)+3
f(3)=6+3
f(3)=9
b] The zero of the function will be given by:
f(x)=2x+x=3x
When x=0 then f(x)=0, hence the zero of the function will be at x=0
Answer:
volume of the prism is 
in³
Step-by-step explanation:
volume of a cube with side length of 
:
(in)³ = 
in³
multiply this area by the amount of cubes:
12 × 3 × 2 = 72 cubes
in³ × 72 = 
= in³
volume of the prism is in³
Answer:
264.6
Step-by-step explanation:
Answer:
The length of the rectangle = 63 ft
Step-by-step explanation:
Let us assume the width of the rectangle = m ft
So, the length of the rectangle = 3 x Width = 3 x m = 3 m ft
Perimeter = 168 ft
PERIMETER OF A RECTANGLE = 2 (LENGTH + WIDTH)
⇒ 168 ft = 2 ( 3 m + m)
or, 168 = 2 ( 4 m)
or, 8 m = 168
⇒ m = 168/8 = 21
or, m = 21 ft
Hence, the width of the rectangle = m = 21 ft
And the length of the rectangle = 3 x m = 3 x 21 = 63 ft
Use this site it will help if not then tell me plz
http://www.mathopenref.com/quadvertexexplorer.html
