If 14y - 4 = 24y + 26 , then 12y =
2 answers:
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This is the correct answer to the problem
Answer:
A. Parallelogram
Step-by-step explanation:
The given points are;
(-10, -4), (-7, -8), (-5, -4), (-2, -8)
Let 'A' represent the point (-10, -4), let 'B' represent the point (-7, -8), let 'C' represent the point (-5, -4), and let 'D' represent the point (-2, -8), we have;
The (horizontal) distance between points A and C = -5 - (-10) = 5
The (horizontal) distance between points B and D = -2 - (-7) = 5
Therefore;
The length of = The length of
The length of = √((-10 - (-7))² + (-4 - (-8))²)) = 5
The length of = √((-5 - (-2))² + (-4 - (-8))²)) = 5
∴ The length of = The length of
is parallel to the horizontal axis
is parallel to the horizontal axis
∴ ║
Given that =
, then
║
Therefore, the quadrilateral ABCD is a parallelogram
(The angle ∠ABD = 180 - arctan (4/3) ≈ 126.9 > 90, therefore, the parallelogram ABCD is not a rectangle.)
Answer:
Step-by-step explanation:
Subtract the right side of the given equation to put it into standard form:
4x² +8x -221 = 0
Then the coefficients used in the quadratic formula are ...
- a = 4
- b = 8
- c = -221
When these are filled into the form ...
the result is as shown above.