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inessss [21]
3 years ago
15

I need help with this ​

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0

Answer:

1st - Yes ; 2nd - Yes ; 3rd - Yes ; 4th - No

Step-by-step explanation:

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A student concluded that the solution to the equation sqrt2x+1 +3=0 is x=4. Do you agree? Why or why not?
Katyanochek1 [597]

Just put 4 as x in the equation and solve it. The new equation is:

sqrt(2*4)+1+3 = 0

Now we can solve it.

sqrt(2*4) becomes sqrt8:

sqrt8+1+3=0. -------> sqrt8+4=0

The sqrt of 8 is about 2.83.. so 2.83+4 is:

6.83

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Pythagorean theorem

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4 years ago
Which of the following statements is always true?
Bezzdna [24]

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Step-by-step explanation:

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2 years ago
What is the correct classification of 18x?. . A.. monomial. . B.. binomial.. C.. trinomial.
kaheart [24]
By definition we have to:
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 For example:
 ax^2
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 18x
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A .. monomial
8 0
4 years ago
Read 2 more answers
If you can answer this, please help !
PolarNik [594]

Answer:

the total of angle's in traingle is 180

so 85+53+c=180

c=180-138

c=42

8 0
3 years ago
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