- f (x) = 3x² + x
- Find f (-5).
Given,
Now, we have to find f (-5). To find this, we just need to substitute -5 in the place of x.
So,
Answer:
The length of the pen is
The width of the pen is
Step-by-step explanation:
Let
x-----> the length of the pen
y----> the width of the pen
we know that
The perimeter of the pen is
so
------> equation A
-----> equation B
Substitute equation B in equation A and solve for x
Find the value of y
therefore
The length of the pen is
The width of the pen is
Answer:
600
Step-by-step explanation:
concert=x
orchestra= 800-x
5x+10(800-x)=7000
5x+8000-10x=7000
-5x=-1000
x=200
800-x=600
Check
200*5=1000
600*10=6000
Answer:
No,it is a factorized quadratic equation
Step-by-step explanation:
(7+3x)2x expands to 14x+6x² which is a quadratic equation. It can also be written as 6x²+14x+0