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4 years ago

13

Hailey paid

1 answer:

kari74 [83]4 years ago

7 0

13.431
Hope this helps.

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plz helo show work or use equation to show how they got this answer just show work plz btw use link get banned

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Step-by-step explanation:

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Ahmed was studying the shapes of quartz crystals, one of which he outlined below.

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you deposit 2050 in your checking account that you can spend towards paying off your credit card balance. If you are required to

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3 years ago

Vector W is in standard position, and makes an angle of 210 degrees with the positive x-axis, it's magnitude is 8. Write W in co

mariarad [96]

Answer:

$\vec W = -4\sqrt{3}\,\hat{i}-4\,\hat{j}$ , $\vec W = (-4\sqrt{3},-4)$

Step-by-step explanation:

If $\vec W$ is in standard position, then its direction is counterclockwise with respect to $+x$ semiaxis. A vector is defined by its magnitude and direction, that is:

$\vec W = \|\vec W\| \cdot (\cos \theta\,\hat{i}+\sin \theta \,\hat{j})$ (1)

Where:

$\|\vec W\|$ - Magnitude, no unit.

$\theta$ - Direction, measured in sexagesimal degrees.

If we know that $\|\vec W\| = 8$ and $\theta =210^{\circ}$ , then the resulting vector is:

$\vec W = 8\cdot (\cos 210^{\circ}\,\hat{i}+\sin 210^{\circ}\,\hat{j})$

$\vec W = -4\sqrt{3}\,\hat{i}-4\,\hat{j}$

Which is also equivalent to:

$\vec W = (-4\sqrt{3},-4)$

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3 years ago