90 degrees converted to radians is pi/2 or π/2 radians.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The line is ![y = -4 x](https://tex.z-dn.net/?f=y%20%20%3D%20%20-4%20x)
Step-by-step explanation:
From the question we are told that
The line is ![y = \frac{1}{4} x + 8](https://tex.z-dn.net/?f=y%20%20%3D%20%20%5Cfrac%7B1%7D%7B4%7D%20x%20%20%2B%208)
The point is P(0,0 )
Generally the equation for a line is ![yn = mx + c](https://tex.z-dn.net/?f=yn%20%3D%20%20mx%20%20%2B%20c)
Now comparing this with the given equation we see that
![m =\frac{1}{4} = slope](https://tex.z-dn.net/?f=m%20%20%3D%5Cfrac%7B1%7D%7B4%7D%20%3D%20%20slope)
![C =8 = intercept](https://tex.z-dn.net/?f=C%20%20%3D8%20%20%3D%20%20intercept%20)
Generally the slope of the perpendicular to the given line is mathematically evaluated as
![m_1 = - \frac{1}{m}](https://tex.z-dn.net/?f=m_1%20%20%3D%20-%20%20%5Cfrac%7B1%7D%7Bm%7D)
=>
=>
Generally from the univesal equation of a line and the given point we have that
y = mx + c at p(0,0) and
is
0 = -4 (0 ) + c
=> c = 0
Hence the equation perpendicular to the line given at the point given is
![y = -4 x](https://tex.z-dn.net/?f=y%20%20%3D%20%20-4%20x)
Answer:
Step-by-step explanation:
Unit price = 31.25 ÷ 5 = 6.25
So each scarf costs 6.25
Answer:
b or d
Step-by-step explanation:
X*y=y/b........................