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photoshop1234 [79]
2 years ago
7

Sally averaged that she spent about 6.8×10^4 seconds training for her weight lifting competition in the month of May. Write this

time in standard notation.
Mathematics
1 answer:
vivado [14]2 years ago
5 0

Answer:

t = 68000 s

Step-by-step explanation:

Given that,

The average time Sally spent for training for her weight lifting competition in the month of May is 6.8\times 10^4\ s.

We need to write this time in standard notation.

The power of 10 is 4. 10⁴ can be written as 10000.

6.8\times 10^4=\dfrac{68}{10}\times 10000\\\\=68000

So, the standard time is equal to 68000 s.

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Evaluate f(2) for the function f(x) = 3x2 + 2x - 5
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According to the question

Expression; \rm (6m^5 + 3 - m^3 -4m) -(-m^5 + 2m^3 - 4m + 6).

To find the subtraction of the polynomial follow all the steps given below.

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                   \rm (6m^5 + 3 - m^3 -4m) -(-m^5 + 2m^3 - 4m + 6)\\\\\rm (6m^5 + 3 - m^3 -4m) +(m^5 -2m^3 +4m - 6)

  • Step2; Rewrite terms that are subtracted as the addition of the opposite.

        \rm (6m^5 + 3 - m^3 -4m) +(m^5 -2m^3 +4m - 6)\\\\6m^5 + 3 + (-m^3) + (-4m) + m^5 + (2m^3) + 4m + (-6)

  • Step3; Group-like terms.

                   \rm 6m^5 + 3 + (-m^3) + (-4m) + m^5 + (2m^3) + 4m + (-6)\\\\(6m^5 + m^5) + [3 + (-6)] + [(-m^3) + (-2m^3)] + [(-4m) + 4m]\\\\

  • Step4; the resulting polynomial in standard form is,

                    \rm (6m^5 + m^5) + [3 + (-6)] + [(-m^3) + (-2m^3)] + [(-4m) + 4m]\\\\ 7m^5-3m^2-3

                   

Hence, the subtraction in the standard form of the polynomial is \rm 7m^5-3m^2-3.

To know more about Polynomial click the link given below.

brainly.com/question/26078031

                   

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8 2/10 - 3 2/8 =? help.plz
ivolga24 [154]
It = 
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