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ahrayia [7]
3 years ago
6

3(- 1) – 2(2x + 1) = 8(x - 1)?

Mathematics
1 answer:
Nitella [24]3 years ago
6 0

Answer:

x = 1/4

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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Answer:

Hi

Step-by-step explanation:

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3 years ago
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Alan rolls two number cubes. What is the probability that the sum of the two numbers will equal 9?
Ivahew [28]
The answer is 2/15 because it can either be 4 and 5 or 3 and 6
6 0
2 years ago
Select True or False for each statement.
mote1985 [20]
<h2>Answer:</h2>

For a real number a, a + 0 = a.  TRUE

For a real number a, a + (-a) = 1.  FALSE

For a real numbers a and b, | a - b | = | b - a |.  TRUE

For real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c).  FALSE

For rational numbers a and b when b ≠ 0, is always a rational number. TRUE

<h2>Explanation:</h2>

  • <u>For a real number a, a + 0 = a.  </u><u>TRUE</u>

This comes from the identity property for addition that tells us that<em> zero added to any number is the number itself. </em>So the number in this case is a, so it is true that:

a+0=a

  • For a real number a, a + (-a) = 1.  FALSE

This is false, because:

a+(-a)=a-a=0

For any number a there exists a number -a such that a+(-a)=0

  • For a real numbers a and b, | a - b | = | b - a |.  TRUE

This is a property of absolute value. The absolute value means remove the negative for the number, so it is true that:

\mid a-b \mid= \mid b-a \mid

  • For real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c).  FALSE

This is false. By using distributive property we get that:

(a + b)(a + c)=a^2+ac+ab+bc \\ \\ a^2+ab+ac+bc \neq a+(b.c)

  • For rational numbers a and b when b ≠ 0, is always a rational number. TRUE

A rational number is a number made by two integers and written in the form:

\frac{u}{v} \\ \\ v \neq 0

Given that a \ and \ b are rational, then the result of dividing them is also a rational number.

7 0
3 years ago
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GuDViN [60]

Answer:

-8x+6

Step-by-step explanation:

we know that

The expression Subtract (5x-2) from (-3x+4) is equivalent to the algebraic equation

=(-3x+4)-(5x-2)

=-3x+4-5x+2

Group terms that contain the same variable

Combine like terms

=(-3x-5x)+(4+2)

=(-8x)+(6)

=-8x+6

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Trinity! Math skills needed here lol
Genrish500 [490]

Answer:

The slope of the line is 6

Step-by-step explanation:

The slope of the line is given by

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m =(8-2)/(2-1)

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The slope of the line is 6

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