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sladkih [1.3K]
3 years ago
6

PLEASE HELP WILL GIVE BRANLIEST

Mathematics
2 answers:
notka56 [123]3 years ago
4 0
I think the answer is graphing, plz give me brainliest
Aneli [31]3 years ago
3 0
The answer is graphing
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20 POINTS!!!! PLEASE HELP ME!!!!!!
Fittoniya [83]

Answer:

Step-by-step explanation:

a)

2.64÷3.3  ( said  2.64 divided by 3.3)

3.3√2.64  ( yes I know it's not the division sign but it's as close as we can get)

2.64 / 3.3

All three representations  are the same. each say  divide 2.64 by 3.3. If you're thinking that last one looks more like a fraction, you're right, but.. that's also what that means.   I'm showing these different ways to express the idea of division b/c it's part of what is involved with showing the work and understanding it.

so, to do the above let's move the decimal point to the right .. and do we want to move it one or two places.  :?  one because of 3.3 or two , because of 2.64, well we want to move it so we don't have to think about it in the problem... so move it the biggest amount that you need to, get the the decimil out of both numbers.. since the 2.64 needs two moves to the right of the decimal... use 100 times  to move it 2 places, If you needed 3 then use 1000, 4 , 10,000 ect ect... see the pattern?

so

100(3.3 √ 2.64 )

move the decimal point in both 2 places right

330.0 √ 264.0

I put the extra zeros in, just so you can see the decimal easy.  The zeros to the right of the decimal make no difference here.

now I'll know to put the number that I use to divde with above the zero,  of 264.0  .. and i'll think about how many times 3 goes into 26 ,without going over.  3*8 = 24 so I want an 8

    ↓ ←  <u> ←  ← 0.8</u>

330.0 √ 264.0      ( multiply  8 * 330 = 2640 )

    ↓ →  <u> -264 .0   </u>    ( subtract 2640 from the number above )

                       0

you are done with that one, since there is zero left over and   0.8 is the answer

b)

0.324 ÷ 0.27

0.27 √ 0.324

0324 / 0.27

1000( 0.27 √ 0.324)

270 √ 324.0

  ↓  ←<u>  ←  1.2</u>

270 √ 324.0

 ↓→  <u> - 270</u>   ( multiply by the 1 )

 ↓    =      54

 ↓→     <u>   - 540</u>  (multiply by the 2 )

                  0

since there is zero left over you are done. The answer is  1.2

C)

0.32 ÷ 0.16

0.16 √ 0.32

100(0.32 / 0.16)

↓<u> ←   2</u>

16 √32

↓→<u>  -32</u>  ( multiply 16 * 2 = 32 )

         0

zero left over you are done.  the answer is 2 :)

d)

16.92 ÷ 9.4

9.4 √ 16.92

100(16.92 / 9.4)

  ↓  <u> ←  ←  1.8</u>

940 √1692.0

 ↓→→ <u>- 940      </u> (multiply by 1 )

 ↓        7520

 ↓→  <u>-  7520    </u>  (multiply by 8 )

                 0

since there is zero left you are done,  The answer is  1.8

that was a lot, really nobody has talked or told you how to do this before?  

where is your teacher?  :/  

8 0
2 years ago
I need to check my answers
Darina [25.2K]

Answer: I don't see any of the choices that you made.

Explanation: You haven't done anything for me to check.

6 0
3 years ago
Read 2 more answers
Evaluate 10x2y–2 for x = –1 and y = –2.
Paul [167]

Answer:

-16

Step-by-step explanation:

10 x -1= -10

2 x -2= -4

-10-4= -14

-14-2= -16

4 0
3 years ago
Help me i need the answer
Korolek [52]

Answer:

4 solutions

Step-by-step explanation:

remember that y=mx+b

So 2/5x would be you m.And -3/7 is your b

6 0
2 years ago
3(x+2)^2+7 in standard form
Lady bird [3.3K]

Answer:-2x^2+3x-7=0

Step-by-step explanation:

4 0
3 years ago
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