Question

Evaluate the expression 2a + 2.4 for a = 1.7, a = 4, and a = 6.5. The expression 2a + 2.4 is equal to [ ] for a = 1.7 (Type a whole number or a decimal).

Answer 1

The correct answer to evaluate the expression 2a + 2.4 for a = 1.7 is 5.8.

Step-by-step explanation:

The correct answer is option 5.8. To evaluate the expression 2a + 2.4 for a = 1.7, you would substitute the value of a into the expression:

2(1.7) + 2.4 = 3.4 + 2.4 = 5.8

This calculation follows the standard order of operations, first multiplying 2 by 1.7 and then adding 2.4 to the product. As such, the expression 2a + 2.4 is equal to 5.8 when a equals 1.7.

To evaluate the expression 2a + 2.4 for a = 1.7, we substitute the value of a into the expression and calculate:

2(1.7) + 2.4 = 3.4 + 2.4 = 5.8

Similarly, for a = 4:

2(4) + 2.4 = 8 + 2.4 = 10.4

And for a = 6.5:

2(6.5) + 2.4 = 13 + 2.4 = 15.4