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Brums [2.3K]
2 years ago
14

What is the coefficient of x2 in this trinomial?

Mathematics
1 answer:
podryga [215]2 years ago
4 0

Answer:

The coefficient is 1

Step-by-step explanation:

There is an imaginary 1 in front of variables that becomes the coefficient if there isn't already a number there. If it was 5x squared, the coefficient would be 5.

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Answer:

1 2 3 4 5 6 7 8 9 10 11 12 12 14 15!

5 0
3 years ago
The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard de
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Answer: a. 0.6759    b. 0.3752    c. 0.1480

Step-by-step explanation:

Given : The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes

i.e. \mu = 6.3 minutes

\sigma=2.2 minutes

Let x be the long-distance call length.

a. The probability that a call lasts between 5 and 10 minutes will be :-

P(5

b. The probability that a call lasts more than 7 minutes. :

P(X>7)=P(\dfrac{X-\mu}{\sigma}>\dfrac{7-6.3}{2.2})\\\\=P(Z>0.318)\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Z

c. The probability that a call lasts more than 4 minutes. :

P(X

8 0
3 years ago
Anthony Tedesco sold his used mountain bike and accessories for $140. If he received 4 times as much money for the bike as he di
Zepler [3.9K]

Answer:

Step-by-step explanation:

Accessories: x

Bike: 4x

Total1: 5x

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3 0
3 years ago
Read 2 more answers
A person sold an article at a profit of 15% if he sold it for Rs 81 less , his loss would have been 12% find the cost price of t
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Answer:

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sp= 115x/100 ---(when 15%gain)

sp = 88x/100------(when 12% loss

according to question

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3 0
2 years ago
9 unit percent change is 23, what is the 19th unit percent cahnge?
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Answer:

42.40705%

Step-by-step explanation:

(1 - (23/100)^(19/9) = 1 + r/100

0.57593 = 1 + r/100

r = 42.40705%

6 0
2 years ago
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