Explanation

Simply add 49 and 7 to get 56.

Explanation

To simplify the calculation:

729.124932 × 0.04293 ≈ 31.3

31.3 × 2.9233376 ≈ 91.4

91.4 / 0.0683 ≈ 1337.6

1337.6 / 97.671 ≈ 13.7

13.7 / 999.6289 ≈ 0.0137

Rounded to two significant figures:

≈ 0.014

The closest option is: 0.03

Explanation

Perimeter of square of length of 6 feet.

Perimeter = 

a = 6

= 4x6

=24

Explanation

(7+18) * 3 (2+13)

=(25)*3(15)

= 25*45

=1125

******

RY 31-12-2022

Explanation

A multiple of a number is the product of that number with an integer. Since $36 div 1 = 36$ and $36 div 9 = 4$, 36 is a multiple of 1 and 9.

Explanation

7m + 3mn 

= 7 (8) +3 (8)(1)

= 56 + 24

= 80

***

ND18-1-2023

Explanation

Since the bars are on the decimals:

4.86̄ - 3.71̄ = 1.15̄

Explanation

When rounding to 1 decimal place, look at the second decimal (8).

Since it is 5 or greater, we round the first decimal up. Thus, 8.38 becomes 8.4.

Explanation

• The sum of the first n odd numbers is given by the formula: n^2.
• In this case, n = 70, so the sum is 70^2 = 4900.

Explanation

• To solve 3 x (6 + 3):
• First, we calculate 6 + 3 = 9
• Then, multiply 3 by 9:
• 3 x 9 = 27