Answer:
C = 110 cm
Step-by-step explanation:
The circumference is given by
C = pi *d
C = 3.14 * d
C = 3.14 * 35
C =109.9
Rounding
C = 110 cm
Let x = the older student
Let y = the younger student
Let z = the teacher.
x = 2y
z = 5x
z + 5 = 5y Somehow this does not look like its going to be nice.
z = 5y - 5
Since z = 5y - 5 we have
5y - 5 = 5x
y - 1 = x Here's the problem. there is a contradiction. You need to make y bigger, not smaller.
Answer:
Center: (0, 0)
Radius: 4
Step-by-step explanation:
Circle Standard Equation: (x - h)² + (y - k)² = r²
(h, k) is center
r is radius
We see that our <em>h</em> and our <em>k</em> are both 0.
∴ Our center is (0, 0), origin.
We see that our r² = 16
√r² = √16
∴ Our radius is equal to 4
The solutions of given equation are -3, -1, and 3
