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miss Akunina [59]
3 years ago
6

What is 2X^2+9x-1=0 ?

Mathematics
1 answer:
Andreyy893 years ago
4 0

I have no clue whatsoever sorry


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Which of the following expressions represents the phrase “twice the sum of a number and 5”
olga nikolaevna [1]

Answer:

2(x+5)

Step-by-step explanation:

5 0
3 years ago
Which of the following is a result of the construction of a median of a triangle?
stich3 [128]

Answer:

" A side of the triangle is bisected "

Step-by-step explanation:

We have to choose the option which is the result of the construction of a median of a triangle.

When we draw a straight line from a vertex of a triangle to the midpoint of the opposite side then the straight line is called a median of the given triangle.

Hence, when we draw a median of a triangle then it results " A side of the triangle is bisected ". (Answer)  

8 0
3 years ago
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Solve 4^x+2 = 12 for x using the change of base formula log base b of y equals log y over log b.
valentinak56 [21]

The value of x is 1.66

Step-by-step explanation:

Let use revise the rules of exponential and logarithmic equations

1. If y = b^{x}, then log_{b}(y)=x

2. log_{b}(y) = \frac{log(y)}{log(b)}

Use the rules above to solve the problem

∵ 4^{x}+2=12

- Subtract 2 from both sides

∴ 4^{x}=10

change the exponential equation to logarithmic equation

∴ log_{4}(10)=x

∵ log_{4}(10) = \frac{log(10)}{log(4)}

∴ x = \frac{log(10)}{log(4)}

∴ x = 1.66

The value of x is 1.66

Learn more:

You can learn more about logarithmic function in brainly.com/question/10633485

#LearnwithBrainly

6 0
3 years ago
Explain how you know that 7/12 is greater than 1/3 but less than 2/3
PtichkaEL [24]
Or this question you should know that:
1/3 = (1*4)/(3*4) = 4/12 
and 
2/3 = (2*4)/(3*4) = 8/12 
so you can see that 7/12 is greater than 4/12 which is 1/3 and less than 8/12 which is 2/3 :))))
i hope this is helpful
have a nice day
7 0
3 years ago
Read 2 more answers
Is this the right answer
nevsk [136]
You would have to change it into an improper fraction which you would just subtract 14 from the numerator
5 0
3 years ago
Read 2 more answers
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