x + y + z
when x = -6.059; y= 3.884, z = 15.710
2. -19 -(-2.65)
13.535
Chidera's answer is correct for the first problem.
2. -19 - (-2.65) = -19 + 2.65 = -16.35
To evaluate the expression x + y + z when x = -6.059, y = 3.884, and z = 15.710, you simply substitute the given values into the expression and perform the arithmetic operations.
Here's how to calculate it:
1. Replace x with -6.059.
2. Replace y with 3.884.
3. Replace z with 15.710.
So the expression becomes:
-6.059 + 3.884 + 15.710
Then, you can add these three numbers together to get the final result.
Similarly, to evaluate the expression -19 - (-2.65), you need to simplify the subtraction and then compute the result.
Here's how to calculate it:
1. Simplify -(-2.65) by changing the sign of -2.65 to positive, giving you +2.65.
So the expression becomes:
-19 + 2.65
Then, you can add -19 and 2.65 together to get the final result.