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fgiga [73]
3 years ago
12

What is the answer for this equation: 3n-8=n

Mathematics
2 answers:
stiks02 [169]3 years ago
6 0

Answer:

n=4

Step-by-step explanation:

Vadim26 [7]3 years ago
3 0

Answer:

n=4

Step-by-step explanation:

3n-8=n

-3n   -3n

-8=-2n

divide 2 on both sides

4=n

or

n=4

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Find all positive and negative integers b such that x^2+bx+22
notsponge [240]

Answer:

you require two numbers m and n such that. x² + bx + c = (x - m)(x - n) where. m + n = b. and. mn = c. In the case where c = 22 and m & n are integers, we have. mn = 22. But, the (positive) …

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP FAST!!!!!!!!!
malfutka [58]

Answer:

             

Step-by-step explanation:

7 0
2 years ago
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Eric teaches ceramics in his studio.he estimates that one out of every five people who call for information about a class will s
Vlada [557]

The probability that four or fewer of the people who called will sign up for a class = 0.9805

For given question,

Eric estimates that one out of every five people who call for information about a class will sign up for the class.

Last week he receive nine calls.

We need to find the probability that four or fewer of the people who called will sign up for a class.

Total number of calls = 9

⇒ n = 9

Since one out of every five people who call for information about a class will sign up for the class.

the probability of success (p) = 1/5

                                                  = 0.2

and the probability of failure (q) = 1 - p

                                                      = 1 - 0.2

                                                      = 0.8

To find the probability that four or fewer of the people who called will sign up for a class.

So, x would take values 0, 1, 2, 3, 4

Using Binomial principal,

For x = 0,

P(x=0)= ~^9C_0(0.2)^0(0.8)^{9-0}\\\\P(x=0)=0.13422

For x = 1,

P(x=1)= ~^9C_1(0.2)^1(0.8)^{9-1}\\\\P(x=1)=0.30199

For x = 2,

P(x=2)= ~^9C_2(0.2)^2(0.8)^{9-2}\\\\P(x=2)=0.30199

For x = 3,

P(x=3)= ~^9C_3(0.2)^3(0.8)^{9-3}\\\\P(x=3)=0.17616

For x = 4,

P(x=4)= ~^9C_4(0.2)^4(0.8)^{9-4}\\\\P(x=4)=0.06606

So, the required probability would be,

P = P(x = 0) + P(x = 1) + P(x = 2) + P(x = 3) + P(x = 4)

P = 0.1342 + 0.3020 + 0.3020 + 0.1762 + 0.0661

P = 0.9805

Therefore, the probability that four or fewer of the people who called will sign up for a class = 0.9805

Learn more about the probability here:

brainly.com/question/3679442

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3 0
1 year ago
What is the image of point (-7, 7) for mapping (x, y) , (x – 1, x + 6).
Ugo [173]
Because we have the map we just need to change the x with -7 and y with 7.
So the map for (-7, 7) -> (-7-1, 7+6)=(-8, 13)

The answer to your question is B. I hope that this is the answer that you were looking for and it has helped you.
5 0
3 years ago
Let f(x)=9x^3-12x^2-31 and let g(x)=3x-1. Find f(x)/g(x)
kumpel [21]

Answer: f(x)/g(x) = 3x^2 + 6x - 2 - 12/3x+1

Step-by-step explanation:

The first function is f(x) = 9x^3+21x^2-14

The second function is g(x) = 3x+1

     f(x)/g(x = 9x^3+21x^2-14/3x+1

We perform the long division as shown in the attachment to obtain the quotient as: Q(x) = 3x^2+6x - 2 and remainder R = -12

Therefore f(x)/g(x) = 3x^2 + 6x - 2 - 12/3x-1

   Where x does not = -1/3

6 0
2 years ago
Read 2 more answers
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