![x^2-y^2=2\\ \underline{x^2+y^2=4}\\\\ 2x^2=6\\ x^2=3\\ x=-\sqrt3 \vee x=\sqrt3\\\\ 3+y^2=4\\ y^2=1\\ y=-1 \vee y=1\\\\ x\in\{(-\sqrt3,-1),(-\sqrt3,1),(\sqrt3,-1),(\sqrt3,1)\}](https://tex.z-dn.net/?f=%20x%5E2-y%5E2%3D2%5C%5C%20%5Cunderline%7Bx%5E2%2By%5E2%3D4%7D%5C%5C%5C%5C%202x%5E2%3D6%5C%5C%20x%5E2%3D3%5C%5C%20x%3D-%5Csqrt3%20%5Cvee%20x%3D%5Csqrt3%5C%5C%5C%5C%203%2By%5E2%3D4%5C%5C%20y%5E2%3D1%5C%5C%20y%3D-1%20%5Cvee%20y%3D1%5C%5C%5C%5C%20x%5Cin%5C%7B%28-%5Csqrt3%2C-1%29%2C%28-%5Csqrt3%2C1%29%2C%28%5Csqrt3%2C-1%29%2C%28%5Csqrt3%2C1%29%5C%7D%20%20)
So, there are 4 solutions.
B is your answer because 20 - -10 is 10 brainliest please
Answer:
P(z>1.3) = 0.9032
Step-by-step explanation:
We are given:
Mean = 5000
Standard deviation = 1000
x = 6300
P(x>6300)=?
z-score =?
z-score = x- mean/standard deviation
z-score = 6300 - 5000/1000
z- score = 1300/1000
z-score = 1.3
So, P(x>6300) = P(z>1.3)
Looking at the z-probability distribution table and finding value:
P(z>1.3) = 0.9032
So, P(z>1.3) = 0.9032
Answer:$1655.22
Step-by-step explanation:
The total distance from Oakland California to Erlanger Kentucky is 2,364.6 miles. The gas tank gets 25 miles per gallon on the highway. It means that total number of gallons required to cover the distance from Oakland California to Erlanger Kentucky would be
2364.6/25 = 472.92 gallons
If the gas cost $3.50 per gallon, it means that the total amount that it will cost to drive from Oakland California to Erlanger Kentucky would be
472.92 × 3.5 = $1655.22
14/70 in it's simplest form is 1/5
hope this helps :)