Select the ordered pairs that are solutions to the inequality 2x-3y greater than or equal to 12

Mathematics

2 answers:

Strike441 [17]3 years ago

7 0

Answer: (8,1) and (-2,-6)

Step-by-step explanation:

just plug in the x and y coordinates into the formula

Dima020 [189]3 years ago

3 0

Just rank every pair of numbers for example:
The first one is: 1,-3.
2•1-3•-3>12
2+9>12
11>12
That's Incorrect. The first pair of numbers doesn't match the inequality.
Now do the same thing to all the other pairs of numbers.

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Evaluate the square root

Alexandra [31]

$\sqrt{a}=b\iff b^2=a\ for\ a\geq0\ and\ b\geq0\\\\\sqrt{\dfrac{1}{144}}=\dfrac{\sqrt1}{\sqrt{144}}=\dfrac{1}{12}\\\\\\\sqrt1=1\ because\ 1^2=1\\\\\sqrt{144}=12\ because\ 12^2=144$