X^2+8x=20 Solve by completing the square
1 answer:
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Answer:
Option D.
LA Theorem or Postulates
Explanation:
LA theorem or postulates is leg-acute states that if the leg and an acute angle of one right triangle are congruent to the corresponding leg and acute angle of another right triangle, then the triangles are congruent.
In and
[Given]
[Acute angle] [Given]
[Given]
By LA theorems or postulates,
Therefore, LA theorems or postulates support the conclusion that the triangles are congruent.
The focus is above the directrix, so the parabola opens upward—its vertical scale factor is positive (+1/12). The line of symmetry is x=-5, so the vertex form of the equation will have the factor (x -(-5))² = (x+5)². The choice that meets both these requirements is
D. f(x) = (1/12)(x + 5)² + 2
D. f(x) = (1/12)(x + 5)² + 2
The formula being used is V=
r^2(h/3)
V≈235
V=235.62 to be approximate
V≈235
V=235.62 to be approximate