What is the simplified expression for -3(2x-7)+2y+ 2(x+y)?
1 answer:
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<u>Understanding:</u>
The sum of 3 times a number (i'll define it as x) and 4 means is between -8 and 10 which means the value of 3x+4 is less than 10 and greater than -8. With that said, the inequality for that problem would be
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<u>Solving the problem:</u>
Now we know that , you can solve the problem by <em>subtracting 4</em> from each side then<em> dividing by 3.</em>
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<u>Final Answer:</u>
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<span>The <u>correct answer</u> is:
x=4.
Explanation<span>:
The slope of line AB is given by the formula
</span></span>
<span><span>
</span></span><span><span>
Using the coordinates of A and B, we have
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<span><span>
Perpendicular lines have slopes that are negative reciprocals. Since the slope of AB is 0/7, the reciprocal is 7/0, which is undefined.
Any line with an undefined slope is a vertical line. This will be a vertical line that passes through point B.
Vertical lines have the equation x=c, where c is a constant; since it runs through B, which has coordinates (4, 4), this means the equation is x=4.</span></span>
x=4.
Explanation<span>:
The slope of line AB is given by the formula
</span></span>
</span></span><span><span>
Using the coordinates of A and B, we have
</span></span>
Perpendicular lines have slopes that are negative reciprocals. Since the slope of AB is 0/7, the reciprocal is 7/0, which is undefined.
Any line with an undefined slope is a vertical line. This will be a vertical line that passes through point B.
Vertical lines have the equation x=c, where c is a constant; since it runs through B, which has coordinates (4, 4), this means the equation is x=4.</span></span>