Final answer:
To calculate expressions involving multiplication and exponents, multiply the numerical coefficients and combine variables.
Step-by-step explanation:
1.3.1 To calculate 125x6y15, you can multiply the numerical coefficients and combine the variables. The calculation steps are as follows:
- 125 x 6 = 750
- y15 is a variable with an exponent that cannot be simplified further.
- So, the answer is 750y15.
1.3.2 To calculate 3² x 54 ÷ 53, you can perform the calculations in order. The calculation steps are as follows:
- 3² = 3 x 3 = 9
- 9 x 54 = 486
- 486 ÷ 53 = 9.16981 (approx.)
Therefore, the answer to 3² x 54 ÷ 53 is approximately 9.16981.
Learn more about Calculating expressions involving multiplication and exponents