X²+y²-2y=7
using the formula that links Cartesian to Polar coordinates
x=rcosθ and y=r sin θ
substituting into our expression we get:
(r cos θ)²+(r sin θ)²-2rsinθ=7
expanding the brackets we obtain:
r²cos²θ+r²sin²θ=7+2rsinθ
r²(cos²θ+sin²θ)=7+2rsinθ
using trigonometric identity:
cos²θ+sin²θ=1
thus
r²=2rsinθ+7
Answer: r²=2rsinθ+7
4/13.6 = 0
(X/3)/4 = 24
x^2-(7*x)+12 > 0
(1/2)*x^2 = -7
(1/3)*p^2 = 1/4
My friend did this one let me know if it's right or wrong. <3
Answer:
700 foundations is the answer
Step-by-step explanation:
3x+8y=27
3x=27-8y
x=27-8y/3
4(27-8y/3) + 3y=13
36-32/3y +3y =13
36-23/3y=13
36-13=23/3y
y=3
x=1
The square root of zero is zero. Because 0 * 0 = 0.