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Anarel [89]
3 years ago
9

Solving systems of equations using substitution y=2x Y=-2x-4 X= Y=

Mathematics
1 answer:
podryga [215]3 years ago
6 0

Answer:

hope this helps

Step-by-step explanation:

y=2x

y=-2x-4

2x+2x=-4 (grouping like terms)

4x=-4

x=-1

im sorry but im not sure what y is

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1. A quadrilateral has vertices (5, 3) (5,-1) (-1,3) and (-1,-1). What special quadrilateral is formed by connecting the midpoin
antiseptic1488 [7]

Answer:

1. Kite,

2. Kite.

Step-by-step explanation:

1. The quadrilateral form will have 2 equal  pairs of adjacent sides which is a kite.

2. Find the slope and length of the sides:-

slopes (9-6)/ 0-3) = -1

(6-1) / (3-0) = 5/3

(6-1) / (-3-0) = -5/3

(9-6)/(3) = 1

Lengths = sqrt(9 + 9) = sqrt18

sqrt(25 + 9) = sqrt34

sqrt (25 + 9) = sqrt34

sqrt (9 + 9) = sqrt18.

This is another kite.

6 0
3 years ago
Simplify the expressions.1 a. –2 t + 5 t – 2 – t
masha68 [24]

Answer:

1 a.) 2t – 2

1 b.) –9z + 4

2 a.) –2v + 3

2 b.) –13k – 9

3 a.) 7w  − 2

3 b.) 10s

4 a.) 5

4 b.) –3p + 11

5 a.) –29x + 9

b.) 15v – 60x – 2

a.) 25n + 2

b.) –15n

a.) –71x + 4

b.) –15b

Step-by-step explanation:

  • <em>NOTE: I am kind of confused about the way this question is formatted, so I tried to answer everything I could decipher.</em>

1 a.) –2t + 5t – 2 – t →  2t – 2

1 b.) –5z + 4 – 4z →  –9z + 4

2 a.) 8v + 3 – 10v →  –2v + 3

2 b.) –6 – 6k – 3 – 7k →  –13k – 9

3 a.) –6 – 3w + 4 + 10w →  7w  − 2

3 b.) 9s + s →  10s

4 a.) 6 + 8b – 1 – 8b →  5

4 b.) 1p + 6 + 5 – 4p →  –3p + 11

5 a.) 4x – 3x + 9 – 6x 5 →  –29x + 9

b.) 9v + 6v – 2 – 10x 6 →  15v – 60x – 2

a.) n + 2 – (–4)n 6 →  25n + 2

b.) 6n – 3n 7 →  –15n

a.) –4x – 4x + 4 – 9x 7 →  –71x + 4

b.) –9b + (–6)b →  –15b

7 0
3 years ago
What is the area of the base.(area=6 square in.x 5 in.
Murljashka [212]

Answer:

30 square inch

Step-by-step explanation:

area \: of \: base = 6 \times 5 = 30 \:  {inch}^{2}  \\

6 0
3 years ago
Please put into slope intercept form and please SHOW THE WORK
daser333 [38]
5x+y= -5 , i hope I help you
8 0
3 years ago
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Which rate is equivalent to the unit rate of 15 miles per gallon?
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Sixty miles over four gallons would reduce down to 15 miles over one gallon which would 15 miles per gallon.
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