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Licemer1 [7]
3 years ago
9

You have to simplify it -2x+3-(5-6x)

Mathematics
2 answers:
cricket20 [7]3 years ago
6 0

Answer:

4x - 2

Step-by-step explanation:

when there is a expression in parentheses, change the sign of each term in the expression

-2x + 3 - 5 + 6x

collect the like terms

-2x + 6x = 4x

3 - 5= -2

now put them together and you get

4x - 2

UkoKoshka [18]3 years ago
5 0

Answer: 4x−2

Step-by-step explanation:

-2x+3-(5-6x) remove the parentheses

-2x+3-5+6x collect like terms

(−2x+6x)+(3−5) simplify to get 4x−2

Hope this helps, have a blessed and wonderful day! :-)

- Cutiepatutie

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A coin is rigged so that the probability of tossing a head is 0.61. The coin is tossed until the first time that a head turns up
Fiesta28 [93]

Answer:

For this case the probability of getting a head is p=0.61

And the experiment is "The coin is tossed until the first time that a head turns up"

And we define the variable T="The record the number of tosses/trials up to and including the first head"

So then the best distribution is the Geometric distribution given by:

T \sim Geo (1-p=1-0.61)

Step-by-step explanation:

Previous concepts

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

P(X=x)=(1-p)^{x-1} p

Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:

X\sim Geo (1-p)

Solution to the problem

For this case the probability of getting a head is p=0.61

And the experiment is "The coin is tossed until the first time that a head turns up"

And we define the variable T="The record the number of tosses/trials up to and including the first head"

So then the best distribution is the Geometric distribution given by:

T \sim Geo (1-p=1-0.61)

3 0
3 years ago
Help look at picture!
Luda [366]

Answer:

<u>Step 1:  Set x to 0 </u>

-2(0) + y = 3

y = 3

(0, 3)

<u>Step 2:  Set x to 1 </u>

-2(1) + y = 3

-2 + y + 2 = 3 + 2

y = 5

(1, 5)

<u>Step 3:  Set x to 2 </u>

-2(2) + y = 3

-4 + y + 4 = 3 + 4

y = 7

(2, 7)

<u>Step 4:  Set x to 3 </u>

-2(3) + y = 3

-6 + y + 6 = 3 + 6

y = 9

(3, 9)

4 0
3 years ago
Read 2 more answers
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natali 33 [55]

Answer:

y = 2x² - 10

Step-by-step explanation:

We must find a pattern in the numbers. Set out the numbers in a table (Columns 1 and 2 in the table).

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2   -2      -1           4

3    8       4           9

4  22      11          16

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Let's divide them by 2 (Column 3).

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e = base of a natural logarithm,

r = Rate of interest in decimal form.  

Upon substituting our given values in above formula, we will get:

Upon rounding to nearest cent, we will get:

Therefore, an amount of $7499.82 will be in account after 2 years.

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