Answer:
15
Step-by-step explanation:
(18+22+17+x)/4=18
18+22+17+x=18×4
57+x=72
x=72-57
x=15
Answer:
The answer is 6cm
Step-by-step explanation:
Answer:
Step-by-step explanation:
x²+10x+21=0
x²+10x+(10/2)²-(10/2)²+21=0
x²+10x+25-25+21=0
(x+5)²-4=0
(x+5)²=4
(x+y)²=(x+y)(x+y)=x(x+y)+y(x+y)=x²+xy+xy+y²=x²+2xy+y²
(x+y)²=x²+2xy+y²
coefficient of x=2y
y²=[(coefficient of x)/2]²=(2y/2)²=y²
Answer:
$555,765.76
Step-by-step explanation:
1
2
4
8
16
32
64
128
256
512
1024
2048
4096
8192
16282
32564
65128
13256
26512
53024
106048
212096
424192
868384
1736768
3473536
6947072
13894144
27788288
55576576=
555,765.76
