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Triss [41]
3 years ago
7

Please help!

Mathematics
1 answer:
Nitella [24]3 years ago
4 0
x = r cos \theta \\  \\ y = r sin \theta

x = (-2) cos (\pi/3) = (-2)(\frac{1}{2}) =-1 \\  \\ y=(-2) sin (\pi/3) = (-2)(\frac{\sqrt{3}}{2})=-\sqrt{3}

The rectangular coordinates are:
(-1,-\sqrt{3})
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Write the equation of a circle with the following pints in the picture using the completing the square method. Thanks
pantera1 [17]
So hmm notice the picture below

you have the center, and a point on the circle... all you need is the radius

\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ 1}}\quad ,&{{ -2}})\quad 
%  (c,d)
&({{ 3}}\quad ,&{{ -4}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}\leftarrow  r

then use that radius in the circle's equation

\bf (x-{{ h}})^2+(y-{{ k}})^2={{ r}}^2
\qquad center\ ({{ h}},{{ k}})\qquad
radius={{ r}}

8 0
2 years ago
What is the square root of 36 squared
Grace [21]
36;
the square root and the square cancel out, or you can work it out and say 
((36)^1/2)^2 = (6)^2= 36

4 0
3 years ago
Read 2 more answers
Ebert used to make $22 an hour, but got a 10% raise. How much more will he make in a 40 hour work week with the raise?
Helen [10]

Answer: $88.00 per week


Step-by-step explanation: 10% of 22 is 2.2.  22 + 2.2 = 24.20 per hour

Multiply 24.20x40hours = 968.00

Multiply 22.00x40 hours =880.00

Subtract 968-880=88.00 his new weekly pay minus his old weekly pay



3 0
2 years ago
Read 2 more answers
Find the deference between
maxonik [38]

Answer:

$5520

Step-by-step explanation:

Given data

Principal=  $24000

Rate=10%

time= 2 years

Firstly, the compound interest is given as

A=P(1+r)^t

A=24000(1+0.1)^2

A=24000(1.1)^2

A=24000*1.21

A=$29040

The simple interest is given as

A=P(1+rt)

A=24000(1+0.1*2)

A=24000(1.2)^2

A=24000*1.44

A=$34560

Hence the difference is

=34560-29040

=$5520

8 0
3 years ago
WILL GIBE BRAINLEST
Bas_tet [7]
A, C, and D... a polygon simply has all rigid corners and flat edges
4 0
2 years ago
Read 2 more answers
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