A=LW
L=W-4
A=252
sub W-4 for L
A=(W-4)(W)
252=(W-4)(W)
252=W²-4W
minus 252 both sides
0=W²-4W-252
what 2 numbers multiply to get -252 and add to get -4
-18 and 14
0=(W-18)(W+14)
set to zero
W-18=0
W=18
W+14=0
W=-14
false, we can't have negative width
Width=18
L=W-4
L=18-4
L=14
length=14cm
width=18cm
Simplify 3x × 2 to 6x
6x - x + 8y + 4x × 2 - 3x - 5y
Simplify 4x × 2 to 8x
6x - x + 8y + 8x - 3x - 5y
Simplify
<u>10x + 3y</u>
Answer:
6.7
Step-by-step explanation:
6-1.5+(11/5)=6.7
The inverse of the function is
Given the function
We are to find its inverse
Step 1: Ley y = f(x)
Step 2: Replace y with x
Step 3: Make y the subject of the formula
Step 4: Take the square root of both sides
This shows that the inverse of the function is
Learn more here: brainly.com/question/8691744
257.80÷5=49.56 ≈50
50÷5=10