Answer:
y = (x + 1 ) ^2
Step-by-step explanation:
y = x^2 + 2x + 1
Completing the Square
y = ( x + 1 ) ^2 + 0
-3u+8v=-28x9
9u-4v= 44x-3
-27u+72v=252
-27u+12v= -132
60v=384
Divide both sides by 60
60v= 384
60. 60
v=6.4
Substitute v=6.4 in equ 1
-3u+8(6.4)= 28
-3u+51.2=28
-3u=28-51.2
-3u=-23.2
Divide both sides by-3u
-3u=-23.2
-3. 3
u=7.73
Therefore u=7.73 and v=6.4
Answer:
36 nickels and 20 quarters
Step-by-step explanation:
36x5= 180
25x20=500
500+180=680=6.80
John's father is 5 times older than John
F = 5J
John is twice as old as his sister Alice.
J = 2A or A = .5J
In two years time, the sum of their ages will be
58.F+2 + J+2 + A+2 = 58F + J + A + 6 = 58
F + J + A = 58 - 6
F + J + A = 52:
How old is John now?:Substitute for F & A
5J + J + .5J = 52
6.5J = 52
J = 52/6.5
<span>J = 8 yrs
John is 8 years old</span>
83° because
step by step explanation::