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Svetllana [295]
3 years ago
10

Can someone help me on this one Please

Mathematics
1 answer:
Mumz [18]3 years ago
6 0
X-4y=1
2x+y=11
ok so you have x-4y=1 and 2x+y=11
3x-3y=12 is your answer
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Algebra work need help<br> please show working
Nastasia [14]

Expand the left side:

(3x + 2) (5x + 1) = 15x² + 10x + 3x + 2 = 15x² + 13x + 2

Then a = 15 and b = 13, so a - b = 2.

8 0
2 years ago
Copy and complet the table compare the values of 2^x-2 with the values of 2^x-2
Vladimir79 [104]

#2^(x-2)

For 2

  • 2^(2-2)=2⁰=1

For 3

  • 2^(3-2)=2

For 4

  • 2^(4-2)=2²=4

For 5

  • 2^{5-2}=2³=8

For 6

  • 2^{6-2}=2⁴=16

#2^x-2

For 2

  • 2²-2=2

For 3

  • 2³-2=6

For 4

  • 2⁴-2=14

For 5

  • 2⁵-2=30

For 6

  • 2⁶-2=62
3 0
1 year ago
Read 2 more answers
If a=(-1, -3) and b=(11, -8) what is the length of ab?
professor190 [17]

Answer: D.  The length is 13 units.

Step-by-step explanation:

(-1, -3 )    Find the difference between the x values and y values.

 (11, -8)  

-3-(-8) = 5

-1-11 =   -12    now find the  absolute values.

The absolute value of 5 is 5 .  The absolute value of  -12 is 12.

Now use the Pythagorean Theorem formula a^2 + b^2 =c^2  where c square is the length between AB.

5^2 + 13^2 = C^2

25 + 144 = c^2  

169=c^2

c= 13

8 0
2 years ago
at your local video store, you can rent movies for $2 per movie plus a $10 membership fee for the year. you have $20 to spend on
exis [7]
2x+10 is less than or equal to 20
the domain is 0, 1, 2, 3, 4, 5.
5 0
3 years ago
Q(9,10) . R(-5,2) . S(-8,-2) . T (-1,2) . Parallel or Perpendicular
SVEN [57.7K]

Answer:

Perpendicular

Step-by-step explanation:

Put all the points on a graph.

Parallel means that the lines that have the same slope and different y-intercepts. Lines that are parallel to each other will never intersect.

On the graph we made we can see that the lines will have to intersect because the points are in positions that no matter which points we chose to connect together, they would intersect with the other line.

7 0
2 years ago
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