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mariarad [96]
3 years ago
7

What causes a solution to a rational equation to be an extraneous solution?

Mathematics
2 answers:
LenKa [72]3 years ago
6 0

its B just did the pre test

nika2105 [10]3 years ago
5 0
Answer: If a solution results in zero when subsitituted into the denominator of the equation, the solution is extraneous.

This is because you obtained the solution from a simplified version of the original equation, but you have to check if the solution obtained is a real solution of the original equation

In the case that when you substitute the solution in the original version the denominator becomes zero, this solution must be rejected, because the division by zero is not defined.
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2(x/8 + 3) = 7 + 1/4x what is x
malfutka [58]

Answer:

x1 = 2 -\sqrt{5}

x2= 2 +\sqrt{5}

Step-by-step explanation:

x/4 + 6 = 7 + 1/4x

(x^2 - 1)/4x = 1

x^2 - 1 = 4x

x^2 - 4x -1 = 0

x= (4+\sqrt{20})/2 = 2 -\sqrt{5}

x= 2 +\sqrt{5}

5 0
2 years ago
You order two tacos and a salad. The salad costs $3.00, and you leave a $2 tip. You pay a total of $8.00. How much does each tac
Schach [20]
Each taco will cost you $1.50.
5 0
1 year ago
Somebody please help and explain it.
s2008m [1.1K]

Explanation is in the file

tinyurl.com/wpazsebu

3 0
3 years ago
X^2 -10x = 8 solve show work
likoan [24]

Answer:

Step-by-step explanation:

X^2-10x-8=0

Solve simultaneously

8 0
3 years ago
Read 2 more answers
A group of 40 bowlers showed that their average score was 192. Assume the population standard deviation is 8. Find the 95% confi
kodGreya [7K]

Answer:

CI=189.5,194.5

Step-by-step explanation:

From the question we are told that:

Sample size n=40

Mean \=x =192

Standard deviation\sigma=8

Significance Level \alpha=0.05

From table

Critical Value of Z=1.96

Generally the equation for momentum is mathematically given by

 CI =\=x \pm z_(a/2) \frac{\sigma}{\sqrt{n}}

 CI =192 \pm 1.96 \frac{8}{\sqrt{40}}

 CI=192 \pm 2.479

 CI=189.5,194.5

5 0
2 years ago
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