Question

How do you multiply (4.0x10−5)⋅(3.1x10−2)?

Answer 1

Answer:

Step-by-step explanation:

(4.0 × 10 - 5)(3.1 ×10 -2)

(40-5)(31-2)

35 × 29 =1015

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Answer 2

(4.0 x 10 − 5)⋅(3.1 x 10 − 2) = 1015 .

Step-by-step explanation:

• Given: multiply (4.0 × 10 - 5) ⋅ (3.1 × 10 - 2) = ?

• To solve: To multiply (4.0 × 10 - 5) ⋅ (3.1 × 10 - 2).  

        Solution:

• In mathematics, there is a rule called BODMAS (Brackets, Orders, Division/Multiplication, Addition/Subtraction).
• Using the order of that rule, basically every mathematical calculations will be done.
• let’s break the question into 2 parts.
• First part, (4.0 × 10 - 5) = (4.0 × 10) - 5 = 35.
• Second part, (3.1 × 10 - 2) = (3.1 × 10) - 2 = 29.
• Multiplying both parts we get, 35 × 29 = 1015.
• Hence, the answer is 1015.