Answer:
D
Step-by-step explanation:
The perimeter of answer A is 6+6+8+8 which is 12+16=28
The perimeter of answer B is 7+7+7+7 which is 28
The perimeter of answer C is 7+7+6+6 which is 14+12=26
The perimeter of answer D is 9+9+6+6 which is 18+12 which is 30
Answer:
is 3 units away from c
Step-by-step explanation:
19^2 or 361 is the answer to the equation
6 is the value of x in this
Answer:
Step-by-step explanation:
x^2 - 22x = 10
Next step is to complete the square on the left hand side of the equation and it would be balanced by adding the same number to the right side of the equation. It becomes
x^2 - 22x + (22/2)^2 = 10 + (22/2)^2
x^2 - 22x + (11)^2 = 10 + (11)^2
x^2 - 22x + (11)^2 = 10 + 121
x^2 - 22x + (11)^2 = 131
x^2 - 22x + 121^2 = 131
(x - 11)^2 = 131
Taking square root of both the left hand side and the right hand side of the equation, it becomes
x - 11 = ±√131
x - 11 = ±11.45
Adding 11 to the left hand side and the right hand side of the equation, it becomes
x - 11 + 11 = ±11.45 + 11
x = 11.45 + 11 or x = -11.45 + 11
x = 22.45 or x = - 0.45
