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2 years ago

Thanks, everyone for helping me so far so free point for an answer

Mathematics

2 answers:

zhannawk [14.2K]2 years ago

8 0

Answer:

UR WELCOME!

Step-by-step explanation:

MissTica2 years ago

4 0

Answer:ok

Step-by-step explanation:

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blagie [28]

Answer:

this hurts my brain x_x my non-existent brain....

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1 year ago

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Can someone help me out with number 2?

Norma-Jean [14]

$\sin255^o=\sin(300^o-45^o)=\sin300^o\cos45^o-\cos300^o\sin45^o= \\\\=- \frac{ \sqrt{3} }{2}\cdot \frac{ \sqrt{2} }{2}- \frac{1}{2} \cdot \frac{ \sqrt{2} }{2}=- \frac{ \sqrt{6} }{4} - \frac{ \sqrt{2} }{4}= -\frac{ \sqrt{6}+\sqrt{2} }{4}$

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3 years ago

If three-eights of a pound of candy was shared equally among the 3 people, what fraction of a pound did each person receive?

REY [17]

Hola!

3/8 ÷ 3 = 1/8

Each person would recieve 1/8 a pound of candy.

Hope this helps!

~DL

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2 years ago

Please answer this correctly

vichka [17]

Answer:

1/2

Step-by-step explanation:

The non-even numbers are 1, 3, and 5 on the dice.

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8 0

2 years ago

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3sina-4sin4a/sin5a<br> if a=-45 degree

Ierofanga [76]

Given:

The given expression is:

$\dfrac{3\sin a-4\sin 4a}{\sin 5a}$

To find:

The value of the given expression at $a=-45$ .

Solution:

We have,

$\dfrac{3\sin a-4\sin 4a}{\sin 5a}$

Substituting $a=-45$ , we get

$\dfrac{3\sin (-45)-4\sin [4(-45)]}{\sin [5(-45)]}$

$=\dfrac{-3\sin (45)+4\sin (180)}{-\sin (225)}$

$=\dfrac{-3\sin (45)+4\sin (180)}{-\sin (180+45)}$

$=\dfrac{-3\sin (45)+4\sin (180)}{\sin (45)}$

On substituting $\sin (180)$ , we get,

$=\dfrac{-3\sin (45)+4(0)}{\sin (45)}$

$=\dfrac{-3\sin (45)+0}{\sin (45)}$

$=\dfrac{-3\sin (45)}{\sin (45)}$

$=-3$

Therefore, the value of the given expression at $a=-45$ is $-3$ .

8 0

2 years ago