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emmainna [20.7K]
3 years ago
11

Is (1, 2) a solution of the system y > 2x and x+y<3?

Mathematics
1 answer:
m_a_m_a [10]3 years ago
6 0

Answer:

d

Step-by-step explanation:

To determine if (1, 2) is a solution to the system

Substitute x = 1, y = 2 into the inequalities and check their validity.

y > 2x → 2 > 2 ← incorrect statement

x + y < 3

1 + 2 < 3 → 3 < 3 ← incorrect statement

(1, 2) is not a solution to either inequality → d

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3x + 4y = 30<br> 5x + 3 y = 17
vova2212 [387]

Answer:

(-2,9)

Step-by-step explanation:

Solve for the first variable in one of the rquations,then sumstutute the result in the other equation

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3 years ago
3. Find the values of x and y given this diagram​
victus00 [196]

Answer:

Step-by-step explanation:

5y and 45 are supplementary. They add to 180 degrees.

5y + 45 = 180            Subtract 45 from both sides.

  <u>   -45     -45</u>

5y     =      135            Divide by 5

/5                /5

y  =            27    

2x+ 1 and 45 are vertically opposite which means they are equal.

2x+1 = 45                     Subtract 1 from both sides

2x + 1 -1 = 45-1

2x = 44                         Divide by 2

/2     /2

x = 22

Answer

  • x = 22
  • y = 27

3 0
3 years ago
Help me pls i need this right now
Debora [2.8K]

Answer:

146°

Step-by-step explanation:

The measure of the arc EF is equal to the angle subtended at the centre.

That is EF = 146°

3 0
3 years ago
Find how much should be invested to have $12,000 in 11 months at 6.1% simple interest.
trapecia [35]

Answer:

6654.54

Step-by-step explanation:

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3 0
3 years ago
Which equation can be used to determine the distance between the origin and (-2,-4)?
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