3 years ago

1 2 3 4 5 6 7 8 9 10

Mathematics

2 answers:

Sunny_sXe [5.5K]3 years ago

4 0

Answer:

$x^{2}$ + 2

Step-by-step explanation:

Group:

(2 $x^{3}$ + 4x) (-5 $x^{2}$ - 10)

2x ( $x^{2}$ + 2) -5 ( $x^{2}$ + 2)

Common binomial factor = ( $x^{2}$ + 2)

ExtremeBDS [4]3 years ago

3 0

Answer:

it's D on edg

x2 + 2

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The missing values can be found with the help of the Law of Cosine and properties of triangles:

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$b = \sqrt{a^{2}+c^{2}-2\cdot a \cdot c \cdot \cos B}$

$b = \sqrt{16^{2}+12^{2}-2\cdot (16)\cdot (12) \cdot \cos 63^{\circ}}$

$b \approx 15.022$

Angle A (Law of Cosine)

$\cos A = -\frac{a^{2} - b^{2}-c^{2}}{2\cdot b \cdot c}$

$\cos A = - \frac{16^{2}-15.022^{2}-12^{2}}{2\cdot (15.022)\cdot (12)}$

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$C = 45.361^{\circ}$

Hence, the right answer is B.

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