Practicing Success
The Value of $\frac{(2.8)^3 + (2.2)^3}{(28)^2 - 28 \times 22 + 484}$ is: |
0.02 0.05 0.01 0.5 |
0.05 |
$\frac{(2.8)^3 + (2.2)^3}{(28)^2 - 28 \times 22 + 484}$ a3 + b3 = ( a + b ) ( a2 + b2 - ab ) ( a + b ) = \(\frac{a^3 + b^3}{a^2 + b^2 - ab }\) So, a = 2.8 b = 2.2 Then a + b= 2.8 + 2.2 = 5 Divide by 100 because of the decimal of the numerator = \(\frac{5}{100}\) = 0.05 |