Answer:
-26
Step-by-step explanation:
first substitute -2 for x : 2(-2)+5(-2)-12
-4+-10-12
-14-12
-26
-26 is your answer
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154mm
we know that 1cm = 10 mm
therefore 15cm= 10*15 mm
= 150 mm
and 4 mm
we get total mm= 15cm +4mm
= 150mm+4mm
= 154 mm
mm stands for millimeters and cm stand for centimeters
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Equivalent systems = same line = infinite solutions
Yes, sqrt of 1815, cannot be rationalized