Step-by-step explanation:
Quadrilateral ABCD is inscribed in a circle.
Opposite angles of a Quadrilateral are Supplementary.

Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
y=9 (x=-4.5)
Step-by-step explanation:
you have to split the equation up in order to solve
5y=45
divide by 5 on both sides
y=9
-10x=45
divide by -10
x=-4.5
We have sec =
1/cos
Then we also have
cos^2 = 1 – sin^2
Also we have cos = sqrt (1 – sin^2)
Substitute the derived cosine function to sec then we
have
Sec = 1/(sqrt(1-sin^2)
Let y = total cost of the taxi service.
let x = amount of miles
We need to create a system of equations to solve this problem.
Taxi company 1: y = $0.25x + $5
Taxi company 2: y = $0.50x + $1
Set the equations equal to each other
$0.25x + $5 = $0.50x +$1.
Subtract $0.25x from both sides and subtract $1 from both sides.
$4 = $0.25x
Divide both sides by $0.25.
16 miles = x
The companies will charge the same amount of money at 16 miles