You purchase a sweater for $70 that was originally priced at $82 what percent was the sale

Mathematics

1 answer:

lisov135 [29]2 years ago

3 0

Answer:

14.7%

Step-by-step explanation:

82/12 = 100/x

x= 14.7

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The car race lasted 0.004 hours. Convert this value into a fraction. hours

Vladimir79 [104]

0.004 is read as four-thousandths, so write it as fraction using a 4 in the numerator and a 1000 in the denominator. Then reduce it.

0.004 = 4/1000 = 1/250

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ehidna [41]

Step-by-step explanation:

$\sin(60 - \theta) \sin(60 + \theta) \\ = \{ \sin(60) \cos( \theta) - \sin( \theta) \cos(60) \} \{ \sin(60) \cos( \theta) + \cos(60) \sin( \theta) \} \\ = \{ \frac{ \sqrt{3} }{2} \cos( \theta) - \frac{1}{2} \sin( \theta) \} \{ \frac{ \sqrt{3} }{2} \cos( \theta) + \frac{1}{2} \sin( \theta) \} \\ \\$

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$= \{ {( \frac{ \sqrt{3} }{2}) }^{2} { \cos }^{2} \theta \} - \{ {( \frac{ \sqrt{3} }{2} )}^{2} { \sin }^{2} \theta \} \\ \\ = \frac{3}{4} { \cos }^{2} \theta - \frac{3}{4} { \sin}^{2} \theta$