Answer: x = 2
Step-by-step explanation:
Replace y in the first equation by the value of y in the second equation.
Answer: x^2 + y^2 -10y = 0
Step-by-step explanation:
Cartesian coordinates, also called the Rectangular coordinates, isdefined in terms of x and y. So, for the problem θ has to be eliminated or converted using basic foundations that are described by the unit circle and the right triangle trigonometry.
r= 10sin(θ)
Remember that:
x= r × cos(θ)
y= r × sin(θ)
r^2= x^2 + y^2
Multiply both sides of the equation by r. This will give:
r × r = 10r × sin(θ)
r^2 = 10r × sin(θ)
x^2 + y^2= 10r × sin(θ)
Because y= r × sin(θ), we can make a substitution. This will be:
x^2 + y^2= 10y
x^2 + y^2 -10y = 0
The above equation is the Rectangular coordinate equivalent to the given equation.
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Answer: 31 teachers
Step-by-step explanation: let the number of teachers that teach in both school be x
By using venn diagram:
32 - x + x + 61 - x = 62
93 - x = 62
X = 93 - 62
X = 31
57.296 degrees, so welcome
