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Art [367]
3 years ago
7

4(x + 3) = 2(6 + 2x) how do i solve this

Mathematics
2 answers:
mart [117]3 years ago
7 0
1 st you do distributetive property so 4 times x is 4x and 4 times 3 is 12 then you distribute the other side so 2 times 6 is 12 and 2 times 2x is 4x
So now u have the equations 4x + 12 = 12 + 4x and now u can tell that they are equal to each other by using communative property

seraphim [82]3 years ago
3 0

Answer:

Step-by-step explanation: distribute 4 on the left side and distribute 2 on the right side then you will get 4x+12=12+4x. You bring all the terms that have x on one side and the terms don’t have x on the other side, remember, when you bring terms from one side to the other, you must change the sign of the term. 4x-4x=12-12. 0x=0. Therefore, x=R, meaning every number will fits x.

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The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.
Karolina [17]

Answer:

0.685 = 68.5% probability that X is less than 30 minutes

Step-by-step explanation:

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f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

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8 0
3 years ago
List five different vocabulary words that could be used to describe each given expression. A. −+ b. 20−3 c. +2
Marianna [84]

Complete Question:

List five different vocabulary words that could be used to describe each given expression.

(a)\ a - d + c

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Answer:

(a) Vocabulary words: sum, difference, total, subtract, add

(b) Vocabulary words: product, difference, subtract, times, less than

(c) Vocabulary words: quotient, sum, add, divide, ratio

Step-by-step explanation:

(a)\ a - d + c

The word problem of this is:

The addition of c to the difference between a and c

Keywords: addition and difference

Vocabulary words: sum, difference, total, subtract, add

(b)\ 20 - 3c

The word problem of this is:

The difference between 20 and the product of 3 and c

Keywords: difference and product

Vocabulary words: product, difference, subtract, times, less than

(c)\ \frac{b}{d + 2}

The word problem of this is:

The quotient of b\ and\ the sum of d and 2

Keywords: quotient and sum

Vocabulary words: quotient, sum, add, divide, ratio

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3 years ago
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