Answer:
0
Step-by-step explanation:
-20.5 is the same as -20.5
, since anything to the zero power is equal to 1.
Answer:
x = -76 , y = 57
Step-by-step explanation:
5x - 6y = -38
3x + 4y = 0
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use 4 to multiply equation 1
5x(4) - 6y(4) = - 38(4)
20x -24y = -152
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use 6 to multiply equation 2
3x(6) + 4y(6) = 0(6)
18x + 24y = 0
------------------------
20x - 24y = -152
18x + 24y = 0
----------------------
2x = -152
----------------
divide 2 by both sides
x = -76
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to find y, slot in the of x to either equation 1 or 2
--------------------------------
equation 2
3x + 4y = 0
3(-76) + 4y = 0
------------------------
-228 + 4y = 0
4y = 228 - 0
4y = 228
---------------------
divide both sides by 4
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y = 57
for this type of question, you can use
- substitution method
- elimination method
- graphical method
i used substitution method
hope it helps
Answer:
x^2+8x+5=0
Step-by-step explanation:
Well, they all can be divided by 3. So it would be x^2+8x+5=0
4/5*(1/100)= 4/500= 0,008
