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Zanzabum
2 years ago
15

Question 1.

Mathematics
1 answer:
tangare [24]2 years ago
7 0

Answer:

1. 8.03 x 108 2. 6.8 × 10-9 3. 135,900 4. 2.5x10^-11

Step-by-step explanation:

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 803,000,000New Number: 8.03000000Step 2

Now, to find b, count how many places to the right of the decimal.

New Number:8.03000000Decimal Count:12345678

There are 8 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 8.03 (Please notice any zeroes on the end have been removed)

b = 8

Now the whole thing:

8.03 x 108

Step 4

Check your work:

108 = 100,000,000 x 8.03 = 803,000,000

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4. (01.02 MC)
sleet_krkn [62]

Answer:

It is A [1st option]

Step-by-step explanation:

Use process of elimination.

The last 2 would not work since 3^0 is 1 not 0.

Then you can eliminate the 2nd option as it says 2^3^2 is 2^5 which is wrong... it would be 2^6

Therefore, it is A

5 0
3 years ago
What is 3.5x=130+10x
Shalnov [3]

subtract 10 from both sides

-6.5x = 130 divide

 -6.5 into 130

<span>x = -20

</span>

6 0
3 years ago
Read 2 more answers
Which answer choice shows 3.002 written in expanded form?A) 3 + 0.2B) 3 + 0.02C) 3 + 0.002D) 3+ 0.0002
Elanso [62]

SOLUTION

We want to know which answer choice shows 3.002 written in expanded form

To do this let us subtract 3.002 from 3, we have

We got 0.002

So the expanded form is

3+0.002

Hence the correct answer is option C

8 0
1 year ago
What is 21/25 in a fraction
Vlad [161]

21/25 is already a fraction and if you wanted it to be simplified, its already simplified to be 21/25.

5 0
3 years ago
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If the simple interest on ​$2000 for 3 years is ​$​300, then what is the interest​ rate?
ivann1987 [24]

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2 years ago
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