Question

(4.5 x 10²) + (7.3 x 10³)

Answer 1

Ответ:

Объяснение:

To add these two numbers, we need to make sure that they have the same exponent. We can do this by converting 4.5 x 10² to scientific notation with an exponent of 3, which is the same exponent as 7.3 x 10³.

4.5 x 10² = 0.45 x 10³

Now we can add the two numbers:

(0.45 x 10³) + (7.3 x 10³) = 7.75 x 10³

Therefore, the sum of (4.5 x 10²) + (7.3 x 10³) is 7.75 x 10³.

Answer 2

◆ Ответ:

7750

◆ Объяснение:

Решаем 1 пример в скобках:

• Сначало возведем степени: 10² = 100

= (4.5 x 100) + (7.3 x 10³) =

=4.5 x  100 = 450 =

=450 + (7.3 x 10³) =

Теперь решаем пример во 2 скобках:

• возведем степени: 10³ = 1000

Умножаем:

=450 + (7.3 x 1000) =

=7.3 х 1000 = 7300

Решаем весь пример:

450 + 7300 = 7750

★Кратко:

(4.5 x 10²) + (7.3 x 10³) = (4.5 x 100) + (7.3 x 1000) = 450 + 7300 = 7750