The standard form of the equation of a circle of radius r, with (assuming centre h, k) is given as:
(X-h)^2 + (y-k)^2 = r^2
As we are required to write an equation in standard form for the circle with radius 9 centred at the origin.
Centre(h,k)=(0,0), r=9
Substituting these values into the standard form of the equation of a circle given above:
(X-0)^2 + (y-0)^2 = 9^2
X^2 + y^2 =81
The standard form is x^2 + y^2 =81
I’m pretty sure this is right
Answer:
140
Step-by-step explanation:
46+94 = 140
Answer:
sinA(cosA+sinA)*cosA
Step-by-step explanation:
(sinA(2cosA+sinA-cosA))/secA
sinA(cosA+sinA)/secA
sinA(cosA+sinA)*cosA
Answer:
y =-3000x +12000
Step-by-step explanation:
answer is
1) 12000 is the constant therefore when the number of hours is 0 the tickets are 12000
2) the number of tickets (y) are reducing by 3000 for each hour(x). thus the coefficient of variable x should be -3000 (negative because it is reducing)
Answer:
The most specific way you can name this shape is parallelogram.
4x-5=x+13 is the equation that can be used to solve for x.
3x = 18
x is equal to 6
AC is equal to 2*(6+13) = 2*19 = 38
