2 years ago

What is the value of k? -3 ( k + 7 ) - 5k + 4 = 23

Mathematics

2 answers:

Digiron [165]2 years ago

6 0

Answer: k = -5

explanation-

distribute: -3k + -21 - 5k + 4= 23

combine: -8k -17 = 23

add 17 to both sides: -8k = 40

divide both sides by -8: k=-5

Stella [2.4K]2 years ago

5 0

It would be 7.5 K bc it is what it is

You might be interested in

I DONT KNOW WHAT IS 89090x908

never [62]

Answer:

80 893 720

Step-by-step explanation:

hope dis helps!!!!

6 0

2 years ago

Question 2 of 10

lana66690 [7]

Answer:

O_O UHMM I think B and C.. and A

5 0

2 years ago

Read 2 more answers

Express f(x) = |x-2| +|x+2| in the non-modulus form. Hence, sketch the graph of f.

alexgriva [62]

Recall that

$|x|=\begin{cases}x&\text{if }x\ge0\\-x&\text{if }x$

There are three cases to consider:

(1) When $x+2$ , we have $|x+2|=-(x+2)$ and $|x-2|=-(x-2)$ , so

$|x-2|+|x+2|=-(x-2)-(x+2)=-2x-4$

(2) When $x+2\ge0$ and $x-2$ , we get $|x+2|=x+2$ and $|x-2|=-(x-2)$ , so

$|x-2|+|x+2|=-(x-2)+(x+2)=4$

(3) When $x-2\ge0$ , we have $|x+2|=x+2$ and $|x-2|=x-2$ , so

$|x-2|+|x+2|=(x-2)+(x+2)=2x$

So

$|x-2|+|x+2|=\begin{cases}-2x-4&\text{if }x$

4 0

2 years ago

Polygon ABCD is translated to create polygon A'B'C'D. Point A and is located at (1, 5) and point A' is located at (-2, 1). What

Ilia_Sergeevich [38]

$\sqrt{ 3^{2}+4^{2} } =5.$
the distance is 5.
hope it helps.

7 0

2 years ago

Carla is saving money for a trip. She already has some money in her savings account and will add the same amount to her account

Bingel [31]

Answer:

280=8x + 130

Step-by-step explanation:

Im pretty sure this is correct it has been a while since I did this but y is the total amount so y is 280. M is the slope so it would be how often the amount changes so m is 8. x is unknown and what needs to be solved for. b is the y intercept which is just the initial amount of 130.

4 0

3 years ago