Question

Evaluate the expression when x = 10.9. Round the value to the nearest hundredth if necessary.

0.207+2.1 to the third power(x-7.9)

The value of the expression when x equals 10.9 is
.

Answer 1

You have to log back into it and it’ll be answer 7

Answer 2

To evaluate the expression when x = 10.9, let's break down the steps:

Step 1: Substitute the value of x into the expression.

0.207 + 2.1^3(x - 7.9)

Step 2: Simplify the expression inside the parentheses.

x - 7.9 = 10.9 - 7.9

Step 3: Calculate the value inside the parentheses.

10.9 - 7.9 = 3

Step 4: Substitute the simplified value back into the expression.

0.207 + 2.1^3(3)

Step 5: Calculate 2.1^3.

2.1^3 = 2.1 * 2.1 * 2.1 = 9.261

Step 6: Substitute the calculated value back into the expression.

0.207 + 9.261(3)

Step 7: Multiply 9.261 by 3.

9.261 * 3 = 27.783

Step 8: Add the two values together.

0.207 + 27.783 = 27.99

Therefore, when x = 10.9, the value of the expression is approximately 27.99.

Explanation: