The correct answer is option D.Which is ( x - 1 ).
<h3>What is a quadratic equation?</h3>
It is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.
The solution of the given quadratic equation will be:-
-2x² - 22x + 24 = 0
x ² + 11x - 12 = 0
x² + 12x - x + 12 = 0
x ( x + 12 ) -1 ( x + 12 ) = 0
( x -1 ) ( x + 12 ) = 0
Therefore the correct answer is option D.Which is ( x - 1 ).
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Answer:
Step-by-step explanation:
5/y + 7/x =24.........(1)
12/y + 2/x =24........(2)
Let 1/y = a and 1/x = b
5a + 7b = 24 ...........(3)
12a + 2b = 24...........(4)
Multiply (3) by 2 and (4) by 7
10a + 14b = 48..........(5)
84a + 14b = 168.........(6)
Substracting (5) from (6)
84a - 10a = 168 - 48
74a = 120
a = 120/74
a = 60/37
Putting a = 60/37 in (3)
5a + 7b = 24
5(60/37) + 7b = 24
300/37 + 7b = 24
Multiply each term 37
300 + 259b = 888
259b = 888 - 300
259b = 588
b = 588/259
And a = 1/y
60/37 = 1/y
Cross multiply
60y = 37
y = 37/60
Also
b = 1/x
588/259 = 1/x
Cross multiply
588x = 259
x = 259/588
IF sides AC and BC are the 'legs' of the triangle, then the length of the 3rd side is
√ (5² + 6²) = √(25 + 36) = √61 = 7.81 (rounded)
IF side BC is the longest side (hypotenuse) of the triangle, then the length of
the 3rd side is
√(6² - 5²) = √(36 - 25) = √11 = 3.32 (rounded)
The answer is A.
I only know how to explain by using the rule for reflection over x axis sorry.
The rule is (x,-y) x coordinate stays the same but you do the opposite for the y coordinate so -7.05 would be 7.05
Can someone help me with this please and thanks !!
