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3 years ago

Rewrite (2x + 8) + 4 using the associative property. Then simplify.

Mathematics

2 answers:

Arturiano [62]3 years ago

6 0

Answer:

(2x+12)

Step-by-step explanation:

We can re-write (2x+8)+4 using the associative property of addition. The associative property states that you can move around the parenthesis in an addition problem.

We can write (2x+8)+4 as 2x+(8+4).

2x+(8+4) = 2x+12.

skelet666 [1.2K]3 years ago

4 0

Answer:

2x + 12

Step-by-step explanation:

Example of Associative Property Addition:

a + (b+c) = b + (a+c)

Now, implement it to the given expression:

(2x+8) + 4 = 2x + (8+4)

That simplifies to:

2x + 12

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Find the twenty-fifth term of an= (-1)^n

oksano4ka [1.4K]

Answer: -1

Step-by-step explanation: plug in 25 into (-1)^n

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3 years ago

3^-1 ___ 1/4 = < > answer thanks

dybincka [34]

3⁻¹ is greater than 1/4

Step-by-step explanation:

3⁻¹ is nothing but the inverse of 3 .

So it can be written as 1/3.

Value of 1/3 can be found by dividing 1 by 3 to be 0.333...

Value of 1/4 can be found by dividing 1 by 4 to be 0.25

So 0.333 > 0.25

1/3 > 1/4

∴ 3⁻¹ > 1/4

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3 years ago

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siniylev [52]

Answer:

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3 years ago

(5,-2 is on which quardrant

blondinia [14]

Answer:

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Step-by-step explanation:

Plot your points, first plotting 5, then plotting -2.

4 0

3 years ago

IF P(A)=1/3, P(B)=2/5, and P(AuB)=3/5, what is P(A^B)?

Bumek [7]

The probability of the union of two events is the sum of their probability, minus the probability of their interserction:

$P(A \cup B) = P(A) + P(B) - P(A \cap B)$

If we plug the known values into this formula, we have

$\dfrac{3}{5} = \dfrac{1}{3} + \dfrac{2}{5} - P(A\cap B)$

From which we can deduce

$P(A\cap B) = \dfrac{1}{3} + \dfrac{2}{5} - \dfrac{3}{5} = \dfrac{2}{15}$

So, the probability of $A \setminus B$ is a bit less than $P(A)$ , we have to take away all events that belong to B as well:

$P(A \setminus B) = P(A) - P(A\cap B) = \dfrac{1}{3} - \dfrac{2}{15} = \dfrac{1}{5}$

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3 years ago