Both are irrational. pick the first option.
something noteworthy is that in the equation the variable with the positive sign is the "y", meaning is a vertical hyperbola that has a vertical traverse axis.
Check the picture below.
Answer: the correct answer is 20
Step-by-step explanation:
The formula for determining the distance between two points on a straight line is expressed as
Distance = √(x2 - x1)² + (y2 - y1)²
Where
x2 represents final value of x on the horizontal axis
x1 represents initial value of x on the horizontal axis.
y2 represents final value of y on the vertical axis.
y1 represents initial value of y on the vertical axis.
From the graph given,
x2 = - 7
x1 = 5
y2 = - 7
y1 = 9
Therefore,
Distance = √(- 7 - 5)² + (- 7 - 9)²
Distance = √(- 12²) + (- 16)²
= √(144 + 256) = √400
Distance = 20
Answer:
u = v
Step-by-step explanation:
Vector u appears to be the same as v, so its decomposition is simply ...
u = projvu = v
__
There is no orthogonal component.
If P(x, y) lies on the unit circle, then the distance from P to the origin must be 1:
√(x² + y²) = 1
x² + y² = 1
(– 3/5)² + y² = 1
(9/25) + y² = 1
Multiply both sides by 25:
9 + 25y² = 25
Solve the equation for y:
25y² = 25 – 9
25y² = 16
y² = 16/25
y² = (4/5)²
Take the square root of both sides:
y = ± √(4/5)²
y = ± 4/5
Since P is in the second quadrant, then y must be positive:
y > 0
So,
y = 4/5 <——— this is the answer.
I hope this helps. =)