The expression that represents the total perimeter of the sandwich is 4x^2 + 17.
If x = 1.2, the length of the crust would be approximately:
4(1.2)^2 + 17 = 4(1.44) + 17 = 5.76 + 17 = 22.76 centimeters
Therefore, the approximate length of the crust when x = 1.2 is 22.76 centimeters.
So, the correct answer is: 4x2 + 17; 22.76 centimeters
Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?
8x2 + 34; 43.6 centimeters
8x2 + 34; 45.52 centimeters
4x2 + 17; 21.8 centimeters
4x2 + 17; 22.76 centimeters
1 answer