Question

Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 3. (Input decimals only, such as 12.71, as the answer.

Answer 1

87.92

Given,

a=4

b=3

Nowz

`3.14( {a}^(2) + ab) \\ = 3.14( {4}^(2) + 4 * 3) \\ = 3.14(16 + 12) \\ = 3.14 * 28 \\ = 87.92`

hope this helps .

Good luck on your assignment...

Answer 2

87.92

Explanation:

3.14(a²+ab)=

Plugging in values for a and b

3.14(4²+4×3)=

3.14(16+12)=

3.14(28)=

87.92