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3 years ago

Help now plz will give 98 points and mark brainliest plz help

Mathematics

2 answers:

goblinko [34]3 years ago

7 0

X = 7 here’s a picture on how you do it

Illusion [34]3 years ago

4 0

Answer:

m goin to make this as short as possible

10x + 8x + 6

18x + 6 = 136

18x = 126

x = 7

~batmans wife dun dun dun

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Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes

lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 680 trials

r = number of success

p = probability of success which in our question is 0.55

So, it means X ~ $Binom(n=680, p=0.55)$

Now, we have to find the mean and standard deviation of the given binomial distribution.

Mean of Binomial Distribution is given by;

E(X) = n $\times$ p

So, E(X) = 680 $\times$ 0.55 = 374

Standard deviation of Binomial Distribution is given by;

S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{680 \times 0.55 \times (1-0.55)}$

= $\sqrt{680 \times 0.55 \times 0.45}$ = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0

3 years ago

Re-write the equation 3x - y = 4 in slope-intercept form.

Verdich [7]

Answer:

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Rearrange 3x - y = 4 into this form ( add y to both sides )

3x = y + 4 ( subtract 4 from both sides )

3x - 4 = y OR y = 3x - 4 → a

5 0

3 years ago

What is the value (total) of 14+10+(-14)

Dima020 [189]

Answer:

Step-by-step explanation:

14+10=24-14=10

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2 years ago

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The table shows the number of diagonals that can be drawn from one vertex in polygon. Write an equation in function notation for

Reil [10]

Answer:

y = x - 3; 9 diagonals

Step-by-step explanation:

Find the equation: y = x - 3

Plug in 12: y = 12 -3

Solve: y = 9

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Hope this helps! Plz mark brainliest

3 0

2 years ago

Question 1(Multiple Choice Worth 1 points)

Romashka [77]

Answer:

Step-by-step explanation:

Lets say 10 add a 0 = 100 9.5 add a 0 = 95.0 (move ok decimal place) so there is a 5% error.

7 0

3 years ago

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