Multiply. (x - 2)(x + 3)

Mathematics

2 answers:

scoray [572]3 years ago

4 0

I’m pretty sure the answer is x^2 + x - 6

OleMash [197]3 years ago

4 0

Answer:

espero y te ayude esto de aquí

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Find the magnitude and direction of the vector <3,9>. Round angles to the nearest degree and other values to the nearest t

Katen [24]

Answer:

Magnitude: 3√10

Direction angle: 71.56°

Step-by-step explanation:

The magnitude ||v|| of a vector <a,b>, would be:

$||v||=\sqrt{a^{2}+b^{2}$

$||v||=\sqrt{3^{2}+9^{2}$

$||v||=\sqrt{9+81}$

$||v||=\sqrt{90}$

$||v||=3\sqrt{10}$

The vector's reference angle would be:

$tan\alpha =|\frac{b}{a}|$

$tan\alpha =|\frac{9}{3}|$

$tan\alpha =|3|$

$tan\alpha =3$

$\alpha = 71.56$

If $\alpha$ is your reference angle, then your direction angle ∅ depends on what quadrant the vector is located in. Since <3,9> is located in Quadrant I, then ∅= $\alpha$ , which means your direction angle is also 71.56°