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dimaraw [331]
3 years ago
12

Which equation represents a line which is parallel to the line y = -x - 7?

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
7 0

Answer:

whichever one also says -x

Step-by-step explanation:

parallel lines have the same slope

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Murljashka [212]

Answer:

Step-by-step explanation:

\sqrt{2x+3} \sqrt{x-2} =\sqrt{(2x+3)(x-2)} =\sqrt{2x^2-4x+3x-6} =\sqrt{x^2-x-6}

8 0
3 years ago
HELP!! WILL GIVE BRAINLIST!!
sergij07 [2.7K]

Answer:

str + stu = 180 \\ 180 - 20 = 4x \\ 160 = 4x \\ x = 40

4 0
3 years ago
Read 2 more answers
10 (w-4)=4 (w+4)+4w​
eimsori [14]

Answer:

w = 28

Step-by-step explanation:

10(w-4) = 4(w+4)+4w

1. distribute

10w - 40 = 4w +16 +4w

2. collect like terms

10w -4w - 4w = 40 +16

3. solve

2w = 56

w = 28

:D

8 0
3 years ago
Help with 19,20,21,23 please i don't understand geometry at all
Murrr4er [49]
19.  What you know is that HK+KJ = HJ.  If HJ = 25, the sum of the two equations will equal this length.  

x-5+5x-12=25  First, combine your like terms.  You will end up with 6x-17=25.  Add the opposite of -17 to both sides.  6x = 42  Divide both sides by 6.  x = 7.  Substitute x=7 for your original expression of x-5, 7-5=2

20.  (5x-6)/2 = x+6  Multiply each side by 2.  5x-6 = 2x +12  Add 6 to each side 5x = 2x + 18 then subtract 2x from both sides as well.  3x = 18 Finally divide each side by 3.  x=6   To find the length of the remaining segment, substitute this value into (5x-6)/2.  This results in each side equaling a distance of 12.

21.  On the number line, the distance of FG is 16 units.  If the distance of FP is 1/4 of FG, you would simply divide 16 by 4.  The distance of FP is 4 and P lies at 8 on your number line.

23. The distance of SP is x+4 and ST=4x.  Since P is the midpoint, you only have one half of the line as x+4, if you were to double it, you would find that 2x+8 = 4x.  Balance and solve for x, subtract 2x from both sides. 8=2x  Divide each side by 4, 8/4 = 4x/4 resulting in x=2.  If ST equals 4x, substitute and solve, 4(2) = 8
8 0
3 years ago
Solve the system of equations using multiplication. 3x – 3y = –3 5x – y = –13 What is the solution of the system?
love history [14]

ANSWER

The solution is

x=-3,y=-2

EXPLANATION

First equation

3x – 3y = –3

Second Equation:

5x – y = –13

Multiply the second equation by 3 to get:

Third equation:

15x-3y=-39

Subtract the first equation from the third equation:

15x - 3x =  - 39 -  - 3

12x =  - 36

Divide both sides by 12,

x =  \frac{ - 36}{12}  =  - 3

Put x=-3 into the first equation:

3( - 3) - 3y =  - 3

- 9  - 3y =  - 3

Group like terms,

- 3y =  - 3 + 9

- 3y = 6

y =  - 2

The solution is

x=-3,y=-2

6 0
3 years ago
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