-7-3x=-1
Move negative seven to the other side as a positive number
-3x=6
Divide both sides by -3
6/-3 is -2
x is -2
Answer:
2 metre
Step-by-step explanation:
let the width around the field be x metre
then (16+2x)(10+2x)-16×10=120
160+32x+20x+4x²-160=120
4x²+52x-120=0
or x²+13x-30=0
x²+15x-2x-30=0
x(x+15)-2(x+15)=0
(x+15)(x-2)=0
either x+15=0,
x=-15 (Rejected being negative)
or x-2=0
x=2 metre
The square root of 64 is 8 but put 8 to the 1/2 power
The answer is 4
It is a horizontal line at y=-2
Answer: 10470.5
Step-by-step explanation:
I got this and I hope this helps but basically you would do 43/2 then multiply that by 487