Dear beloved readers, welcome to our website! We hope your visit here brings you valuable insights and meaningful inspiration. Thank you for taking the time to stop by and explore the content we've prepared for you.
------------------------------------------------ Which expression has an estimated product of 45?

A. [tex]$44.7 \times 2.1$[/tex]

B. [tex]$7.5 \times 8.4$[/tex]

C. [tex]$8.7 \times 5.28$[/tex]

D. [tex]$38.1 \times 7.3$[/tex]

To determine which expression has an estimated product of 45, we can look at each option and see which one rounds to 45.

Here are the expressions and their estimated products:

1. [tex]$44.7 \times 2.1$[/tex]:
- The exact product is roughly 94.
- This number rounds far from 45.

2. [tex]$7.5 \times 8.4$[/tex]:
- The exact product is roughly 63.
- This number rounds to a value much higher than 45.

3. [tex]$8.7 \times 5.28$[/tex]:
- The exact product is roughly 46.
- This number is very close to 45, rounding to approximately 46, which is about as close to 45 as we get.

4. [tex]$38.1 \times 7.3$[/tex]:
- The exact product is roughly 278.
- This number is much higher than 45.

From this analysis, the expression [tex]$8.7 \times 5.28$[/tex] has a product that is closest to 45, making it the best estimate.