Question

Show your work to find the value of the expression below when x = 3 and y = 0.
2x^2 - 2xy

Answer 1

c. 40 kg

Explanation:

To convert pounds to kilograms, you can use the following conversion factor:

1 pound = 0.45359237 kilograms

So, to convert 88 pounds to kilograms:

88 pounds * 0.45359237 kg/pound ≈ 39.916 kg

Rounded to two decimal places, the dog's weight is approximately 39.92 kg.

Among the given options, the closest one is:

c. 40 kg

Answer 2

45

Explanation:

5x² - 2xy ← substitute x = 3 and y = 0 into the expression

= 5(3)² - 2(3)(0)

= 5(9) - 6(0)

= 45 - 0

= 45