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BabaBlast [244]
4 years ago
8

If a polynomial function f(x) has roots 0, 4, and square root 11, what must also be a root of f(x)?

Mathematics
1 answer:
adell [148]4 years ago
4 0
I'm assuming that there is another root which should be -SQRT(11)
f(x) = x(x-4)(x+SQRT(11))(x-SQRT(11)
Then
f(x) =  x^4 -4x^3 - 11x^2 +44x
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A parallelogram has sides 20cm and 30cm with an angle of 80 between the two sides. What is the length of each of the diagonals?
Lelu [443]

Answer:

length of diagonals are BD = 33.039 cm and AC = 38.84 cm

Step-by-step explanation:

given,

sides of parallelogram is 20 cm and 30 cm

Angle between them is 80°. opposite angle of parallelogram are same the opposite angle is same.

other angle  = 360° - 80° - 80° + 2 x = 200

                                        x = 100°

Using cosine law

c² = a² + b² - 2ab cos γ

In ΔDAB

BD² = 30² + 20 ² - 2 × 30 × 20 cos 80°

BD = 33.039 cm

now in ΔADC

c² = a² + b² - 2ab cos γ

AC² = 20² + 30² - 2 × 30 × 20 cos 100°

AC = 38.84 cm

length of diagonals are BD = 33.039 cm and AC = 38.84 cm

6 0
3 years ago
+4.31. Let a(s) be a unit speed curve with kt = 0. Prove there is a curve
yanalaym [24]

Answer:

It is proved

Step-by-step explanation:

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See attachment for the step by step solution of the given problem.

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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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