Question

1: B) 12³+5 4: r) (10³ +8³): 18.​

Answer 1

Ответ:

12^3+5=1728+5=1733

(10^3+8^3):18=1512:18=84

Answer 2

1: B) 12³ + 5

To solve this expression, we need to follow the order of operations, which states that we should perform any calculations inside parentheses first, then exponents, followed by multiplication and division (from left to right), and finally addition and subtraction (from left to right).

Let's break down the expression step by step:

1. Calculate the exponent: 12³ = 12 * 12 * 12 = 1,728.
2. Add 5 to the result: 1,728 + 5 = 1,733.

Therefore, the value of the expression 12³ + 5 is 1,733.

4: r) (10³ + 8³) : 18

Similarly, we'll apply the order of operations to this expression:

1. Calculate the exponents: 10³ = 10 * 10 * 10 = 1,000, and 8³ = 8 * 8 * 8 = 512.
2. Add the results of the exponents: 1,000 + 512 = 1,512.
3. Divide the sum by 18: 1,512 ÷ 18 = 84.

Therefore, the value of the expression (10³ + 8³) : 18 is 84.