Answer:
£45
Step-by-step explanation:
Say the original price is x. When we take 20% off, that's basically multiplying x by 20% and then subtracting that product from the original price, which is x:
x - 20% * x = 80% * x = 0.8x
Now, this equals £36, so we just set them equal:
0.8x = 36
Dividing by 0.8 from both sides, we get:
x = £45
Thus, the answer is £45.
Given:
The equation of circle is

To find:
The polar form of given circle.
Solution:
We have,

![[\because (a+b)^2=a^2+2ab+b^2]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%28a%2Bb%29%5E2%3Da%5E2%2B2ab%2Bb%5E2%5D)

Subtracting 9 from both sides, we get

We know that,
and
.


and 
We know that, r is radius it cannot be 0. So,


Therefore, the correct option is A.
Okay, the easiest way
(I personally) find surface area is to find the area of each face
[L x W (OR H)] and then add all of the areas together.
Question 1) The Area of 1 of the faces is 4, because 2 x 2 is 4. Since there is 6 faces, do 6 times 4, or
feet in total.
Answer:
sinx = √2/3
Step-by-step explanation:
cos2x = 1-2sin²x
5/9 = 1-2sin²x
2sin²x =1-5/9
2sin²x = 4/9
sin²x = (4/9)/2
sin²x = (4/9)*(1/2)
sin²x = 2/9
sinx = √2/3
Answer:58
Step-by-step explanation:
Answer 58