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Diano4ka-milaya [45]
3 years ago
12

What are the sine, cosine, and tangent of circle = 3pi/4 radians?

Mathematics
1 answer:
KengaRu [80]3 years ago
7 0

if  you don't have a Unit Circle yet, this is a good time to get one, you can find many online, check maybe in yahoo images, or google images.

Check the picture below.

notice the section encircled in purple.

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I don't really get it plz help tell if it's a regular or not regular polygon
ladessa [460]
So the definition of a regular polygon is that the sides are all equal, the interior angles are all equal, and the exterior angles are all equal.
Notice how with #s 3 and 4, the angles are all shown as equal, as well as their sides. However, #s 5 and 6 have different angles and sides, respectively.
Therefore 3 and 4 are regular, but 5 and 6 are irregular (not regular).
4 0
3 years ago
Can some one help me plzz
zloy xaker [14]

Let me try . . .

When two lines intersect, they form four (4) angles, all at the same point.
There are two pairs of angles that DON't share a side, and a bunch of other
ones that do share sides. A pair of angles that DON't share a side are called
a pair of "vertical angles".

A pair of vertical angles are equal, but this problem isn't even asking you about
that; it's just asking you to find a pair of vertical angles.

Since you and I are not sitting together at the same table, I can't point to
the drawing and point out different angles to you.  You just have to go
through the choices, and find a choice where both angles are formed from
the same two lines.

The first choice (KRE and ERT) is no good, because KR,  RE,  and  RT
are parts of three different lines.

Check out the other 3 choices, and you're sure to find the only one where
both angles are formed by the same two lines.


4 0
3 years ago
Read 2 more answers
if the area of a circle is represented by A=21π, what is the radius of the circle? round your answer to the nearest tenth
Reptile [31]
The equation is actually
circle area = PI * radius^2
radius = square root (area / PI)


5 0
3 years ago
3.6.PS-7 Question Help 0 Edward deposited $9,500 into a savings account 5 years ago. The simple interest rate is 2%. How much mo
Sedaia [141]

~~~~~~ \textit{Simple Interest Earned}\\\\I = Prt\qquad\begin{cases}I=\textit{interest earned}\\P=\textit{original amount deposited}\dotfill & \$9500\\r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\t=years\dotfill &5\end{cases}\\\\\\I = (9500)(0.02)(5)\implies \boxed{I = 950}

4 0
2 years ago
When u skip count by 8 you skip over the secret number
klemol [59]
<span>most likely you would have to count by 8's....8...16.....24 and so on since 8 </span>
4 0
3 years ago
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