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18.01.2021 •
Mathematics
Classify the quadrilateral Then, find x and y.
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Ответ:
Square
x = 2
y = 1
Step-by-step explanation:
All sides of the given quadrilateral are marked with identical signs so all sides are equal. Also, each angle is right angle. So it is a square.Measures of all ll sides of a square are equal.
Therefore,
5x - 4 = 3x
5x - 3x = 4
2x = 4
x = 4/2
x = 2
5y + 1 = 2y + 4
5y - 2y = 4 - 1
3y = 3
y = 3/3
y = 1
Ответ:
B
Step-by-step explanation:
Let's go through each equation one by one until we find one that satisfies the condition.
Equation A cannot have two real solutions, since the only thing that could make it true is 10i, which is not a real number.
Equation B could have two real solutions, since if you divide both sides by 5 then you will be left with , which has two real solutions of and . Therefore, the answer is B. Hope this helps!