it's the third choice because of your radius like how it's 2πR^2
Answer:
x=4
Step-by-step explanation:
Answer:
y=-3x+5
Step-by-step explanation:
y=-3x-7
slope is -3
parallel lines have the same steepness, they have the same slope. The slopes are equal.
y-y1=m(x-x1)
y-2=-3(x-1)
y-2=-3x+3
y=-3x+3+2
y=-3x+5
Answer:
Step-by-step explanation:
(1 - i) / (sqrt(3 + 4i)
= (1 - i) / ![\sqrt{3 + 4i}](https://tex.z-dn.net/?f=%5Csqrt%7B3%20%2B%204i%7D)
=> multiply and divide by conjugate of denominator
= ![(1 - i) / \sqrt{3 + 4i} * \sqrt{3 - 4i} / \sqrt{4 - 3i}](https://tex.z-dn.net/?f=%281%20-%20i%29%20%2F%20%5Csqrt%7B3%20%2B%204i%7D%20%20%2A%20%5Csqrt%7B3%20-%204i%7D%20%2F%20%5Csqrt%7B4%20-%203i%7D)
= ![(1 - i)*(\sqrt{3 - 4i} ) / (\sqrt{3 + 4i} *\sqrt{3 - 4i})](https://tex.z-dn.net/?f=%281%20-%20i%29%2A%28%5Csqrt%7B3%20-%204i%7D%20%29%20%20%2F%20%28%5Csqrt%7B3%20%2B%204i%7D%20%2A%5Csqrt%7B3%20-%204i%7D%29)
= ![(1 - i) * (\sqrt{3 - 4i} ) / \sqrt{(9 - 16i^{2} )](https://tex.z-dn.net/?f=%281%20-%20i%29%20%2A%20%28%5Csqrt%7B3%20-%204i%7D%20%29%20%2F%20%5Csqrt%7B%289%20-%2016i%5E%7B2%7D%20%29)
= ![(1 - i) * (\sqrt{3 - 4i} ) / \sqrt{(9 - (-16) )](https://tex.z-dn.net/?f=%281%20-%20i%29%20%2A%20%28%5Csqrt%7B3%20-%204i%7D%20%29%20%2F%20%5Csqrt%7B%289%20-%20%28-16%29%20%29)
= ![(1 - i) * \sqrt{3 - 4i} ) / \sqrt{25}](https://tex.z-dn.net/?f=%281%20-%20i%29%20%2A%20%5Csqrt%7B3%20-%204i%7D%20%29%20%2F%20%5Csqrt%7B25%7D)
= ![(1 - i) * \sqrt{3 - 4i} / 5](https://tex.z-dn.net/?f=%281%20-%20i%29%20%2A%20%5Csqrt%7B3%20-%204i%7D%20%20%2F%205)
= ![\sqrt{(1 - i)^{2} } * \sqrt{3 - 4i} / 5](https://tex.z-dn.net/?f=%5Csqrt%7B%281%20-%20i%29%5E%7B2%7D%20%7D%20%20%2A%20%5Csqrt%7B3%20-%204i%7D%20%20%2F%205)
= ![\sqrt{(1 + -1 -2i)*(3 - 4i)} / 5 \\\sqrt{-2i * (3 - 4i)} / 5\\\sqrt{-6i + 8*-1} /5 \\\sqrt{-6i - 8 } / 5](https://tex.z-dn.net/?f=%5Csqrt%7B%281%20%2B%20-1%20%20-2i%29%2A%283%20-%204i%29%7D%20%2F%205%20%5C%5C%5Csqrt%7B-2i%20%2A%20%283%20-%204i%29%7D%20%20%2F%205%5C%5C%5Csqrt%7B-6i%20%2B%208%2A-1%7D%20%20%2F5%20%5C%5C%5Csqrt%7B-6i%20-%208%20%7D%20%20%2F%205)
One i’m pretty sure i’m sorry if it’s wrong