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emmainna [20.7K]
2 years ago
5

(7, -1) and (21,-5) What is the slope

Mathematics
1 answer:
shepuryov [24]2 years ago
4 0

Answer:

the slope is -2/7

Step-by-step explanation:

<u>-5+1=  -4</u>

21-7=  14

-4/14 = -2/7

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What value or values of x satisfy 2x + 5.31 = 4.2?
Softa [21]

Answer:  x can equal -3.2 or -7.4.

Step-by-step explanation:

The correct expression is:

2|x+5.3|=4.2

So, we have an absolute value equation, where it can be positive or negative:

  • Positive

2 (x+5.3)=4.2

2x+10.6 =4.2

2x=4.2-10.6

2x = -6.4

x= -6.4/2

x = -3.2

  • Negative

2[-(x+5.3)]=4.2

-2x-10.6 =4.2

-2x= 4.2+10.6

-2x= 14.8

x= 14.8/-2

x= -7.4

x can equal -3.2 or -7.4.

Feel free to ask for more if needed or if you did not understand something.  

3 0
3 years ago
Lily says that 4 x 7000 has the same product as 7 x 4000 is she correct? explain using the associative property of multiplicatio
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Yeah they have both the same products. if u  look at how many 0 the have u would be ever to tell that it would equal 28000
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Sorry but I don’t understand your language.
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How do I do trigonometry:ratios and finding missing sides?
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Answer:

Use trig ratios to find unknown sides in right triangles.

Step-by-step explanation:

3 0
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Dan drove 845 miles in 13 hours. At the same rate, how many miles would he drive in 11 hours
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