Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Which two expressions are equivalent to [tex]\( -2 \frac{4}{9} \)[/tex]? Choose BOTH expressions.

A. [tex]\( -1\left(\frac{4}{9}+\frac{4}{9}\right) \)[/tex]
B. [tex]\( -1\left(2+\frac{4}{9}\right) \)[/tex]
C. [tex]\( -2+\left(-\frac{4}{9}\right) \)[/tex]
D. [tex]\( -2+\frac{4}{9} \)[/tex]
E. [tex]\( 2+\frac{4}{9} \)[/tex]


Sagot :

To determine which two given expressions are equivalent to [tex]\(-2 \frac{4}{9}\)[/tex], let's carefully break down and evaluate each expression step-by-step.

First, convert the mixed number [tex]\(-2 \frac{4}{9}\)[/tex] to an improper fraction or a decimal:
- [tex]\(-2 \frac{4}{9}\)[/tex] can be written as [tex]\(-2 - \frac{4}{9} \approx -2.4444\)[/tex].

Now, we will evaluate each expression:

1. Expression 1: [tex]\(-1 \left(\frac{4}{9} + \frac{4}{9}\right)\)[/tex]
- First, compute the sum inside the parenthesis: [tex]\(\frac{4}{9} + \frac{4}{9} = \frac{8}{9}\)[/tex].
- Then, multiply by [tex]\(-1\)[/tex]: [tex]\(-1 \left(\frac{8}{9}\right) = -\frac{8}{9} \approx -0.8889\)[/tex].
- This does not equal [tex]\(-2 \frac{4}{9}\)[/tex].

2. Expression 2: [tex]\(-1 \left(2 + \frac{4}{9}\right)\)[/tex]
- First, compute the sum inside the parenthesis: [tex]\(2 + \frac{4}{9} = 2 \frac{4}{9} \approx 2.4444\)[/tex].
- Then, multiply by [tex]\(-1\)[/tex]: [tex]\(-1 \left(2.4444\right) = -2.4444\)[/tex].
- This is equal to [tex]\(-2 \frac{4}{9}\)[/tex].

3. Expression 3: [tex]\(-2 + \left(-\frac{4}{9}\right)\)[/tex]
- Convert to a single addition operation: [tex]\(-2 - \frac{4}{9} \approx -2 - 0.4444 \approx -2.4444\)[/tex].
- This is equal to [tex]\(-2 \frac{4}{9}\)[/tex].

4. Expression 4: [tex]\(-2 + \frac{4}{9}\)[/tex]
- Perform the addition operation: [tex]\(-2 + \frac{4}{9} \approx -2 + 0.4444 \approx -1.5556\)[/tex].
- This does not equal [tex]\(-2 \frac{4}{9}\)[/tex].

5. Expression 5: [tex]\(2 + \frac{4}{9}\)[/tex]
- Perform the addition operation: [tex]\(2 + \frac{4}{9} \approx 2 + 0.4444 \approx 2.4444\)[/tex].
- This does not equal [tex]\(-2 \frac{4}{9}\)[/tex].

The expressions that are equivalent to [tex]\(-2 \frac{4}{9}\)[/tex] are:

- [tex]\(\boxed{-1 \left(2 + \frac{4}{9}\right)}\)[/tex]
- [tex]\(\boxed{-2 + \left(-\frac{4}{9}\right)}\)[/tex]