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victus00 [196]
3 years ago
14

Which is an extraneous solution of the exponent x+sqrtx=6

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0
First, we can simplify it down. 
x = (-x + 6)^2
Then, you should have x - (x^{2} - 12x + 36).
Factor it to get x = 4 or 9. 4 works in the original equation but 9 does not.
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What is the value of x?
Harlamova29_29 [7]

Answer:

if x is by itself it's 1

Step-by-step explanation:

If a question as x=10 x is equal to the number

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3 years ago
A train travels at 45 miles per hour. Write and equation that represents the distance, d, that the train will travel, in t hours
jek_recluse [69]

Answer:

d = 45 * t

Step-by-step explanation:

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3 years ago
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The number of measles cases increased 13.6 % to 57 cases this year, what was the number of cases prior to the increase? (Express
ELEN [110]

Answer:

The number of cases prior to the increase is 50.

Step-by-step explanation:

It is given that the number of measles cases increased by 13.6% and the number of cases after increase is 57.

We need to find the number of cases prior to the increase.

Let x be the number of cases prior to the increase.

x + 13.6% of x = 57

x+x\times \frac{13.6}{100}=57

x+0.136x=57

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Divide both the sides by 1.136.

\frac{1.136x}{1.136}=\frac{57}{1.136}

x=50.176

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Therefore the number of cases prior to the increase is 50.

7 0
3 years ago
in a single elimination tournament starting with 128 teams, half of the remaining teams are eliminated in each round. a) make a
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The answer is 4 teams
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5 0
3 years ago
Public health officials believe that 90% of children have been vaccinated against measles. A random survey of medical records at
Vikentia [17]

Answer:

The answer to the question is;

Yes, it is very significant as the number of of observed vaccinated children is below the number of actually vaccinated children by 78.

Step-by-step explanation:

The result of the survey of more than 13,000 children indicate that only 89.4 % had actually been and the P-value indicate that the chance of having a sample proportion of 89.4 %  vaccinated is 1.1 %.

P is low at 0.011 for which however the proportion of those vaccinated is between 0.889 and 0.899 using a 95% confidence interval, whereby the decrease from 90 % believed to 89.9 % is small, albeit it depends on the size of the population.

At 89.4 %, in a sample of 13,000, the number of children expected to have been vaccinated but were missed is equal to 90 - 89.4 = 0.6 % = 0.006

Therefore the children missed = 78 children which is significant.

5 0
4 years ago
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