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3 years ago

Which expressions are equivalent to 3(-2a-4)+3a

Mathematics

2 answers:

prisoha [69]3 years ago

6 0

Answer:

-3a-12

Step-by-step explanation:

3•-2a=-6a

3•-4=-12

+3a

-6a+3a=-3a

-3a-12

g100num [7]3 years ago

5 0

Answer:

- 3a - 12

Step-by-step explanation:

3(- 2a - 4) + 3a

- 6a - 12 + 3a

- 3a - 12.

<h2>IF YOU WANT TO FIND THE VALUE OF A THEN, </h2>

- 3a - 12 = 0

- 3a = 12

a = -12/3

a = -4

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Simplify the following expression. 4a^-2b A.) b/4a^2 B.)4b/a^2 C.)1/4a^b2

Sergio [31]

ANSWER

The correct answer is B

$\frac{4b}{ {a}^{2} }$

EXPLANATION

The given exponential expression is

$4 {a}^{ - 2} b$

We can rewrite this as,

$4b \times {a}^{ - 2}$

We need to simplify to obtain a positive index, so we apply the following property,

${a}^{ - m} = \frac{1}{ {a}^{m} }$

This implies that,

$4b \times {a}^{ - 2} = 4b \times \frac{1}{ {a}^{2} }$

This will finally simplify to,

$4b \times {a}^{ - 2} =\frac{4b}{ {a}^{2} }$

Therefore the correct answer is B

6 0

3 years ago

Read 2 more answers

Rewrite each expression by combining like terms. 8pq - 3pq 2m - 3m + 4

qaws [65]

Answer:

8pq-3pq= 5pq
2m-3m+4 =4-m

Step-by-step explanation:

The first equation shows two terms can be combine as follow: 8pq-3pq= (8-3)pq by applying common factoring. Then, because 8-3=5, it can be expressed as 5pq.
In the second equation, we have only two terms that can be factored by combining the terms that share the same factor (which is m). Then, 2m-3m+4 can be expressed like m(2-3)+4. Because (2-3)=-1 and because the order of the sum does not affect the result, the result is 4-m.

4 0

3 years ago

Somebody please help!

Leona [35]

The answer would be 101

Steps:
2+8=10
10x10=100 (because of the exponent)
100+1=101

3 0

3 years ago

Which pair of expressions are equivalent?

Zielflug [23.3K]

Answer:

second one

Step-by-step explanation:

Because when you try to remove the brackets then you should multiply coefficient of x and coefficient of y by 2

So it will be 2x+18y

2*9=18

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3 years ago

You are using a recipe for meatloaf that calls for 10 ounces of ground beef: the recipe is for 5 servings but you want to make e

pogonyaev

Answer:

16

Step-by-step explanation:

10 divided by 5 equals 2 (10/5=2)

2 times 8 equals 16 (2 x 8 = 16)

8 0

3 years ago