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Oxana [17]
3 years ago
8

Adiya said that the first step to solving the quadratic equation x2 + 6 = 20x by completing the square was to divide 6 by 2, squ

are that value, and add the result to both sides. Is Adiya’s solution method correct? Explain.
Mathematics
2 answers:
Anit [1.1K]3 years ago
7 0
No, actually the method is not correct. Adiya needed to take x2 and subtract it from 20x. she would then get 6 = 18x. Have in mind also that she needed to divide 18. So 6 = 18x turns into 6=X. That is why is incorrect
Brrunno [24]3 years ago
6 0

Answer:

Adiya’s method is not correct. To form a perfect square trinomial, the constant must be isolated on one side of the equation. Also, the coefficient of the term with an exponent of 1 on the variable is used to find the constant in the perfect square trinomial. Adiya should first get the 20x term on the same side of the equation as x2. Then she would divide 20 by 2, square it, and add 100 to both sides.

Step-by-step explanation:

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For an outdoor event organizers estimate that 60000 people will attend if it is not raining. If it is raining, event organizers
s2008m [1.1K]

For an outdoor event organizers, the expected number of people who will attend is 32700

<u>SOLUTION:</u>

Given, For an outdoor event organizers estimate that 60000 people will attend if it is not raining.  

And If it is raining, event organizers estimate that 21000 people will attend.  

On the day of the show, meteorologists predicted a 70% chance of rain.

We have to determine the expected number of people who will attend.

Now, number of people = 70% of rain case + 30% of other case.

Number of people = 0.7 x rain case + 0.3 x other case

Number of people = 0.7 x 21000 + 0.3 x 60000

= 2100 x 7 + 6000 x 3 = 32700.

Hence, the expected count is 32700

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3 years ago
5. Molly has 5 sticks of lengths 2,4,6,8, and 10 inches. Using three sticks at 1 point
sergeinik [125]

Answer:

4, 6 & 8  /   4, 8 & 10 ,  /  6, 8 & 10

So 3 triangles

Step-by-step explanation:

The longest side of a triangle has to be greater than the difference of the other 2 sides, and less than the sum of the other 2.

diff < long side < sum

Not equal to, less than & greater than.

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Question 9 (3 points)
AleksandrR [38]
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Maurinko [17]

Answer:

X = 3

You're welcome.

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
What is a prime or composite number?
melomori [17]
-A prime number is a whole numbergreater than 1, whose only two whole-number factors are 1 and itself. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.

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