Hello,
x=r cos t
y=r sin t
x²+y²=r²
r=4 cos t
r=4x/r==>x²+y²=4x
==>(x-2)²+y²=4 (a circle center (2,0),radius 2)
Answer:
A
Step-by-step explanation:
no solution I think no definite answer
Answer:
x = -1
Step-by-step explanation:
<h2>
first divide 8 by 2, to get 3x-4 =x-6. then, add four on both sides to get 3x = x-6 + 4. to x's and number on different sides, you are now going to subtract 1x from both sides to get 2x = -6 + 4. solve to get 2x = -2. lastly, divide both sides by 2 do get <u>x = -1</u>
. </h2><h2>
</h2><h2>
:)</h2>
Answer:
x = 5.5
Step-by-step explanation:
Using a trig ratio, you can use sin, which is opposite over hypotenuse. 
Now, multiply both sides by 11
this simplifies to x = 
or 5.5.
Since sin30 is 
radians, it can be written as 
.
Answer:
Step-by-step explanation:
If she was given a discount of 12% then the amount to be paid becomes I=P×R×T/100
I=400000×12×20/100
I=960000
Amount to be paid =I +P= 960000+400000=1360000
To liquidate this amount in 20 years therefore will be A÷20
1360000÷20
=68000 yearly
