Let
x-------------> amount added <span>to each side
</span>A-------------> area increased----------> 84 ft²
we know that
A=(10+x)*(5+x)=84-----------> 10*5+10*x+5*x+x²
50+15x+x²=84----------> x²+15x-34=0
<span>solving the second order equation
</span>x1=-17
x2=2
the answer is x=2 ft
Answer:
17. 15
18. 8(this one I'm not sure tho what does the right one say)
19. 32
20. 5
Answer:
c
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
You add 2+3 and get 5. Then you square it to get 25.
Answer:
12
Step-by-step explanation:
4s multiples:
4,8,12,16,20,24
6s multiples:
6,12,18,24,30,36
lowest number that is a common multiple between both 4 and 6:
12
