Answer:
x=10
y=-3
Step-by-step explanation:
3x + 5y= 15...eqn. 1
2x + 4y= 8...eqn. 2
multiply eqn. 1 by 2 and eqn. 2 by 3
6x + 10y = 30...eqn. 3
<u>6x</u><u> </u><u>+</u><u> </u><u>12y</u><u> </u><u>=</u><u> </u><u>24...eqn. 4</u>
0 - 2y = 6
divide both sides by the coefficient of y which is -2
<u>- 2y</u> = <u>6</u>
- 2 -2
y= -3
Put y= -3 into eqn. 1
3x + 5(-3) = 15
3x - 15 = 15
3x =15 + 15
<u>3x</u> =<u> 30</u>
3 3
x = 10
Therefore X= 10 and Y= -3
Answer:
Step-by-step explanation:
a).
= 
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[Since, i =
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b).
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= 5 ± 2i [Since, i =
]
c).
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[Since, i =
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Answer:
-5.1, -5, -4.5, -4.45,-4 2/5
Answer:
A square.
Step-by-step explanation:
I plotted the points on Desmos and then connected them.
When connected, the lines form a square.
[Picture Below]
Answer:
Tenths is the correct answer because the first digit after the decimal represents the tenths place. the next digit after the decimal represents the hundredths place the remaining digits continue to fill in the place values until there are no digits left.