9514 1404 393
Answer:
x = -7, x = 9
Step-by-step explanation:
We presume your equation is ...
x² -2x -63 = 0
Factors of -63 that have a sum of -2 are -9 and +7. Then the factored equation is ...
(x -9)(x +7) = 0
Solutions make the factors zero.
x -9 = 0 ⇒ x = 9
x +7 = 0 ⇒ x = -7
The solutions to the quadratic equation are x = -7 and x = 9.
The distance from the base of the tree to the tallest would be 14.21 cm
<h3>We have the following data points in this question</h3>X1 = 8 feet
y1 = 16 feet
x2 = 11 feet
y2 = 9 feet
To proceed with the solution we have to
We have to solve for the shorter tree
<em>= </em>9² + 11²
= √81 +121
= 14.21
<h3>For the taller tree we would have</h3>√8² + 16²
= √64 +256
= 17.89
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