From everyday questions to specialized queries, IDNLearn.com has the answers. Our platform offers comprehensive and accurate responses to help you make informed decisions on any topic.

Select the correct answer.

What is the value of this expression when [tex]$w = -5$[/tex]?

[tex]w^2 + 3w - 11[/tex]

A. -51
B. -36
C. -16
D. -1


Sagot :

To determine the value of the expression [tex]\(w^2 + 3w - 11\)[/tex] when [tex]\(w = -5\)[/tex], follow these steps:

1. Substitute [tex]\(w\)[/tex] with [tex]\(-5\)[/tex] into the expression:
[tex]\[ w^2 + 3w - 11 \quad \text{becomes} \quad (-5)^2 + 3(-5) - 11 \][/tex]

2. Calculate the square term [tex]\((-5)^2\)[/tex]:
[tex]\[ (-5)^2 = 25 \][/tex]

3. Calculate the product [tex]\(3 \times (-5)\)[/tex]:
[tex]\[ 3 \times (-5) = -15 \][/tex]

4. Combine these results with [tex]\(-11\)[/tex]:
[tex]\[ 25 + (-15) - 11 \][/tex]

5. Perform the addition and subtraction step-by-step:
[tex]\[ 25 - 15 - 11 = 10 - 11 = -1 \][/tex]

So, the value of the expression [tex]\(w^2 + 3w - 11\)[/tex] when [tex]\(w = -5\)[/tex] is:
[tex]\[ \boxed{-1} \][/tex]

The correct answer is D. -1.