Evaluate if x=2 and y=5 -3x+4y
1 answer:
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Okay so let's say I wanted to change 100cm into mm
I would multiply 100 by 10 because there are 10 mm in a cm
so it would be 1000mm
for example :
500cm to mm
= 500*10
=5000 mm
I have included a picture to help!
hope this helps you!
I would multiply 100 by 10 because there are 10 mm in a cm
so it would be 1000mm
for example :
500cm to mm
= 500*10
=5000 mm
I have included a picture to help!
hope this helps you!
Answer:
x = ±
Step-by-step explanation:
3x² - 9 = 0 ( add 9 to both sides )
3x² = 9 ( divide both sides by 3 )
x² = 3 ( take square root of both sides )
x = ±
or
3x² - 9 = 0 ← factor out 3 from each term
3(x² - 3) = 0
equate x² - 3 to zero and solve for x
x² - 3 = 0 ( add 3 to both sides )
x² = 3 ( take square root of both sides )
x = ±