2 years ago

7x+2y>-5(-1,1) Determine whether the ordered pair is a solution of the linear inequality

Mathematics

1 answer:

boyakko [2]2 years ago

7 0

Answer:

Step-by-step explanation:

<u>Given inequality:</u>

7x + 2y > - 5

<u>Verify if (-1, 1) is correct:</u>

7(-1) + 2(1) > - 5
- 7 + 2 > - 5
- 5 > - 5

False inequality, it is not the solution

You might be interested in

Please solve equations by completing square

BlackZzzverrR [31]

$x^2-4x+1=0\\
x^2-4x+4-3=0\\
(x-2)^2=3\\
|x-2|=\sqrt3\\
x-2=\sqrt3 \vee x-2=-\sqrt3\\
x=2+\sqrt3 \vee x=2-\sqrt3$

$x^2+6x-9=0\\
x^2+6x+9-18=0\\
(x+3)^2=18\\
|x+3|=\sqrt{18}=3\sqrt2\\
x+3=3\sqrt2 \vee x+3=-3\sqrt2\\
x=-3+3\sqrt2 \vee x=-3-3\sqrt2\\$

$x^2+20x+3=0\\
x^2+20x+100-97=0\\
(x+10)^2=97\\
|x+10|=\sqrt{97}\\
x+10=\sqrt{97} \vee x+10=-\sqrt{97}\\
x=-10+\sqrt{97} \vee x=-10-\sqrt{97}$

$x^2-2x-5=0\\
x^2-2x+1-6=0\\
(x-1)^2=6\\
|x-1|=\sqrt6\\
x-1=\sqrt6 \vee x-1=-\sqrt6\\
x=1+\sqrt6 \vee x=1-\sqrt6$

8 0

3 years ago

Distance between two points

s344n2d4d5 [400]

Answer:

6 units

Step-by-step explanation:

3 0

2 years ago

Which of the following is the graph of y = 0.25csC(x+1)+1?

REY [17]

The graph should look like this