Question

$\frac{(10.1)^3 +(2.9)^3}{(10.1)^2 + (2.9)^2 - 10.1 \times 2.9}$

• A. 7.2
• B. 8
• C. 20.9
• D. 13

Answer 1

Answer:

D. 13

$\frac{(10.1{)}^3+(2.9{)}^3}{10.1\times 10.1+2.9\times 2.9-29.29}$

$=\frac{(10.1+2.9)(10.1^2+2.9^2-10.1\times 2.9)}{10.1\times 10.1+2.9\times 2.9-29.29}$

$=10.1+2.9=13$