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Hoochie [10]
3 years ago
5

Now consider the expression 4.0×103+4×102. determine the values of a and k when the value of this expression is written in scien

tific notation.
Mathematics
2 answers:
natta225 [31]3 years ago
6 0
Let`s say that the expression is written in the form:a * 10^k.4 * 10^3 + 4 * 10^2 = = 4 * 10 * 10^2 + 4 * 10^2 = = 40 * 10^2 + 4 * 10^2 = = 44 * 10^2 = 4.4 * 10^3.Answer:a = 4.4 and k = 3 and the expression in the scientific notation is:4.4 * 10^3.

Feliz [49]3 years ago
4 0

Answer:

The values of ''a'' and ''k'' are :

a=4.4

k=3

Step-by-step explanation:

If we want to write a number in scientific notation we can write it as :

a.(10)^{k}    (I)

Where ''a'' is a real number and :

1\leq a

Where ''k'' is an integer number.

The first step is to find the value of the expression.

The expression is :

4.(10)^{3}+4.(10)^{2} ⇒

4.(10)^{3}+4.(10)^{2}=4000+400=4400

We need to write the number ''4400'' in scientific notation.

We can write it as :

4400=(4.4).(10)^{3}

If we compare this final expression with (I) ⇒

a=4.4

k=3

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How do you solv divisions like 60/19. Please someone tell me fast
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Answer:

The first thing you do is:        

Step-by-step explanation:

How to calculate 60 divided by 19

Here we will show you step-by-step with detailed explanation how to calculate 60 divided by 19 using long division.

Before you continue, note that in the problem 60 divided by 19, the numbers are defined as follows:

60 = dividend

19 = divisor

Step 1:

Start by setting it up with the divisor 19 on the left side and the dividend 60 on the right side like this:

           

 1 9 ⟌ 6 0  

Step 2:

The divisor (19) goes into the first digit of the dividend (6), 0 time(s). Therefore, put 0 on top:

       0    

 1 9 ⟌ 6 0  

Step 3:

Multiply the divisor by the result in the previous step (19 x 0 = 0) and write that answer below the dividend.

       0    

 1 9 ⟌ 6 0  

       0    

Step 4:

Subtract the result in the previous step from the first digit of the dividend (6 - 0 = 6) and write the answer below.

       0    

 1 9 ⟌ 6 0  

     - 0    

       6    

Step 5:

Move down the 2nd digit of the dividend (0) like this:

       0    

 1 9 ⟌ 6 0  

     - 0    

       6 0  

Step 6:

The divisor (19) goes into the bottom number (60), 3 time(s). Therefore, put 3 on top:

       0 3  

 1 9 ⟌ 6 0  

     - 0    

       6 0  

Step 7:

Multiply the divisor by the result in the previous step (19 x 3 = 57) and write that answer at the bottom:

       0 3  

 1 9 ⟌ 6 0  

     - 0    

       6 0  

      5 7  

Step 8:

Subtract the result in the previous step from the number written above it. (60 - 57 = 3) and write the answer at the bottom.

       0 3  

 1 9 ⟌ 6 0  

     - 0    

       6 0  

     - 5 7  

         3  

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2 years ago
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