Answer :
To determine which expression has an estimated product of 45, let's examine the expressions and their estimated products:
1. [tex]\( 447 \times 2.1 \)[/tex]
- The estimated product of this expression is 939.
2. [tex]\( 7.5 \times 84 \)[/tex]
- The estimated product of this expression is 630.
3. [tex]\( 87 \times 5.28 \)[/tex]
- The estimated product of this expression is 459.
4. [tex]\( 38.1 \times 7 \)[/tex]
- The estimated product of this expression is 267.
Comparing these estimations with the target product of 45, none of these expressions have an estimated product that comes close to 45. Therefore, there is no expression that matches the estimated product of 45 in this list.
1. [tex]\( 447 \times 2.1 \)[/tex]
- The estimated product of this expression is 939.
2. [tex]\( 7.5 \times 84 \)[/tex]
- The estimated product of this expression is 630.
3. [tex]\( 87 \times 5.28 \)[/tex]
- The estimated product of this expression is 459.
4. [tex]\( 38.1 \times 7 \)[/tex]
- The estimated product of this expression is 267.
Comparing these estimations with the target product of 45, none of these expressions have an estimated product that comes close to 45. Therefore, there is no expression that matches the estimated product of 45 in this list.
