Question

A^2+3b/a-a при a=0.6 b=2

Answer 1

$0.6^{2} +3*2/0.6-0.6=(\frac{3}{5} )^{2} +10-\frac{3}{5} =\frac{9}{25} +10-\frac{3}{5} =\frac{244}{25} =9.76$

Answer 2

To evaluate the expression A^2 + 3b/a - a for the given values a=0.6 and b=2, we simply substitute these values into the expression and perform the arithmetic. Remember to follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). Let's calculate it step by step:

Step 1: Replace a with 0.6 and b with 2 in the expression:

A^2 + 3b/a - a = A^2 + 3(2)/0.6 - 0.6

Step 2: Perform the arithmetic inside the parentheses:

A^2 + 3(2) = A^2 + 6

Step 3: Divide 3(2) by 0.6:

3(2)/0.6 = 6/0.6 = 10

Step 4: Substitute the results back into the expression:

A^2 + 10 - 0.6

Step 5: Combine like terms:

A^2 + 9.4

Now, the expression A^2 + 3b/a - a with a=0.6 and b=2 is simplified to A^2 + 9.4. Please note that we cannot determine the value of A without additional information.