2 years ago

Pleas yall help ill give 20 points

Mathematics

1 answer:

lesya [120]2 years ago

4 0

Answer:

b) x=-2

Step-by-step explanation:

2(x+2)-4x =8

2x+4-4x

-2x+4 = 8

-4 -4

-2x = 4

(divide both sides by -2)

x=-2

You might be interested in

Uma empresa do ramo de confecções produz e comercializa calças jeans. Se x representa a quantidade produzida e comercializada (e

Semenov [28]

Answer:

I am in 5 classso i did not known answer

5 0

2 years ago

For the following geometric sequence find the recursive formula: {-1, 3, -9, ...}.

vredina [299]

First term (a1) is -1

recursive formula goes like this

$a_n$ is the nth term
$a_{n-1}$ is the term before that

we normally have $a_n=f(a_{n-1})$

we see each term is multipying by -3 to get next one

so that would be
$a_n=-3*a_{n-1}$ where a1=-1

the 3rd option is correct except that it is the explicit formula

so answer is 2nd one

3 0

2 years ago

Dan's grandmother gave him $30 for his birthday. He decides to put $20 in a box for saving. Every week his parents give him $5 f

kozerog [31]

Answer:

$y=4\cdot{x}+20$

Step-by-step explanation:

Let the regresssion line be linear because of a constant amount of money coming in. Let y be the total amount of money in the box and x the weeks of adding to the box:

$y=m\cdot{x}+c$

We know that he puts $20 in the box from his birthday and $4 every week for x weeks. Therefore the total amount of money will be:

$y=4\cdot{x}+20$

7 0

3 years ago

What 2 numbers add up to 17 and multiply to get -84?

kicyunya [14]

21 and -4, because -4x21 = -84, and 21+-4 (– 4) = 17

6 0

3 years ago

Simplify (6ab3c)(-abc2). a-6a2b4c3 b-6ab3c2 c-6b2c

Misha Larkins [42]

(6ab³c)(-abc²) = -6a²b⁴c³

6 0

3 years ago