Question

Evaluate the expression for h = 2 and j = 13.

Write your answer as a decimal or whole number.

–6.4h2 − j =

Answer 1

To evaluate the expression \(-6.4h^2 - j\) with \(h = 2\) and \(j = 13\), we first substitute the values of \(h\) and \(j\) into the expression.

1. Substitute \(h = 2\) and \(j = 13\):
\[
-6.4(2^2) - 13
\]

2. Calculate \(2^2\):
\[
2^2 = 4
\]

3. Substitute \(4\) back into the expression:
\[
-6.4(4) - 13
\]

4. Calculate \(-6.4 \times 4\):
\[
-6.4 \times 4 = -25.6
\]

5. Now, substitute \(-25.6\) into the expression:
\[
-25.6 - 13
\]

6. Finally, calculate \(-25.6 - 13\):
\[
-25.6 - 13 = -38.6
\]

So, the value of the expression is \(-38.6\).