3 years ago

Use scientific notation to find the product of 7.13x10^_3 and 40.

1 answer:

7 0

Step-by-step explanation:

$7.13 \times {10}^{ - 3} \times 40 \\ = (7.13 \times 40) \times {10}^{ - 3} \\ = 285.2 \times {10}^{ - 3} \\ = 2.852 \times {10}^{ - 5}$

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3 years ago

If 10 + a = 10, then a = 0

Lunna [17]

Answer:

B) identity property of addition.

Step-by-step explanation:

Given:

The statement given is:

$10+a=10,\ then\ a=0$

Here, we observe that 10 is added to a giving the number 10 itself as the answer. So, we know of a property which says that when 0 is added to a number, the result is the number itself. This property is called identity property of addition.

So, the value of $a$ must be 0 because on adding $a$ to 10, we are getting the number 10 only. So, the above statement is an example of identity property of addition.