3 years ago

Which trig ratio is incorrect

Mathematics

1 answer:

n200080 [17]3 years ago

3 0

Answer:

Step-by-step explanation:

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Likurg_2 [28]

Answer:

159.69*0.75 = 119.76

Step-by-step explanation:

Cause we have a 25% discount, that means that the skatebord costs 75% of its original price.

The 75% of the original price is the 75/100 part (0.75)

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3 years ago

A group of students at a school takes a history test. The distribution is normal with a mean of 25, and a standard deviation of

Anna [14]

Answer:

27.1

Step-by-step explanation:

Given:

mean=25

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3 years ago

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nikitadnepr [17]

Answer:

Step-by-step explanation:

Under a rotation about the origin of 180°

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3 years ago

Find the exact value of sin(255∘)

Masteriza [31]

Check the picture below.

$\textit{Sum and Difference Identities} \\\\ sin(\alpha + \beta)=sin(\alpha)cos(\beta) + cos(\alpha)sin(\beta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ sin(255^o)\implies sin(135^o+120^o) \\\\\\ sin(135^o)cos(120^o)~~ + ~~cos(135^o)sin(120^o) \\\\\\ \left( \cfrac{\sqrt{2}}{2} \right)\left( -\cfrac{1}{2} \right)~~ + ~~\left( -\cfrac{\sqrt{2}}{2} \right)\left( \cfrac{\sqrt{3}}{2} \right)\implies -\cfrac{\sqrt{2}}{4}~~ - ~~\cfrac{\sqrt{6}}{4}\implies \cfrac{-2-\sqrt{6}}{4}$

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3 years ago

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umka2103 [35]

Answer:

y=9x+0

Step-by-step explanation:

So if you look at the table, <em>y </em>is multiples of 9.

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3 years ago