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Anna [14]
3 years ago
15

Which ordered pairs are solutions to the inequality 2x+y>−4?

Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Answer:

The ordered pairs are (5,-12), (-1,-1).

Step-by-step explanation:

Given : Inequality 2x+y>-4

To find : Which ordered pairs are solutions to the inequality ?

Solution :

We put the given options the point which satisfied the equation is the solution.

Inequality 2x+y>-4

1) (5,-12)

2(5)+(-12)>-4

10-12>-4

-2>-4

It is true.

2) (-1,-1)

2(-1)+(-1)>-4

-2-1>-4

-3>-4

It is true.

3) (-3,0)

2(-3)+(0)>-4

-6+0>-4

-6>-4

It is false.

4) (4,-12)

2(4)+(-12)>-4

8-12>-4

-4>-4

It is false.

Therefore, The ordered pairs are (5,-12), (-1,-1).

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(-5,3);5×=4y+9 can you help me solve ​
kompoz [17]

Answer:

-25 ≠ 21

Step-by-step explanation:

it looks like the question is asking you to solve 5x=4y+9 when given the ordered pair (-5,3)

you would substitute -5 for x and 3 for y in the equation

5(-5) = 4(3) + 9

-25 = 12 + 9

-25 = 21

the question is asking you to see if the left side is equal to the right side of the equation

-25 is not equal to 21, therefore (-5,3) is not a solution to the equation

4 0
3 years ago
Solve the equation <br>r ÷ (-8) =5​
krok68 [10]

Answer:

r=-40

Step-by-step explanation:

r/-8=5

times -8 on both sides

5 times -8 =-40

r=-40

8 0
3 years ago
Read 2 more answers
The ratio of child to teen to adult tickets sold at a water park on Saturday was 4 : 1 : 2. A total of 294 tickets were sold. Ho
Gwar [14]
168
You add 4, 1, and 2 to get 7. You put 4/7=x/294. Then you use proportions to solve for x. 
7x=1176
x=168
3 0
3 years ago
Read 2 more answers
2w^2-11w=-12 <br> a w=3/2 or 4<br> b w=1 or 12<br> c w=1 or 7<br> d w = 2.5 or 6
dlinn [17]
Hey mate !!
Here's your answer !!


2w^2 - 11w = -12
2w^2 -11w + 12 = 0
2w^2 - 8w - 3w + 12 = 0

2w ( w - 4) -3 ( w - 4) = 0
(2w - 3) ( w - 4) = 0

Hence

2w - 3 = 0
2w = 3
w = 3/2

w - 4 = 0
w = 4

Hence value of w are 4 and 3/2

Hope this helps!!
Cheers!!
7 0
3 years ago
I WILL GIVE BRAINLIEST!!
Afina-wow [57]

Answer:

\text{D. The terms may be combined.}

Step-by-step explanation:

Recall that \sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}. Using this, we can simplify and combine the two terms:

6\sqrt{32}-12\sqrt{72},\\=6\cdot \sqrt{4}\cdot \sqrt{8}-12\cdot \sqrt{9}\cdot \sqrt{8},\\=6\cdot 2\cdot \sqrt{8}-12\cdot 3\cdot \sqrt{8},\\=12\sqrt{8}-36\sqrt{8},\\=-24\sqrt{8}=-24\cdot\sqrt{4}\cdot\sqrt{2}=\boxed{-48\sqrt{2}}. Therefore, the terms may be combined.

8 0
3 years ago
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