Answer:
z = 110
Step-by-step explanation:
The measure of an angle created by the intersection of two secants outside a circle is half the difference of the angles it intercepts. In this it would be:
2x + 15 = 1/2 * (10x + 20 - 80)
We can now solve:
4x + 30 = 10x - 60
30 = 6x - 60
6x = 90
x = 15
This means the values of 10x + 20 is 10(15) + 20, which is 170.
Now, we can add up all the arcs in a circle, which sum to 360 degrees:
360 = z + 170 + 80
360 = z + 250
z = 110
Answer:
y = 8x + 10 and y = (1/8)x + 10 are intersecting lines.
4x + 10y = 6 and y = (5/2)x + 7 are perpendicular lines.
x + y = 5 and 7x + 7y = 14 are parallel lines.
y = 2x + 8 and -y = -2x + 6 are parallel lines.
y = 8x + 10 and y = -(1/8)x + 10 are perpendicular lines.
Step-by-step explanation:
Input the equations into a graphing calculator and eyeball them. lol
Answer:
n = 3
Step-by-step explanation:
8n - (3n + 4) = 11
8n - 3n - 4 = 11
5n = 11 + 4
5n = 15
n = 3
The study I’m not sure to be honest bro I’m sorry.
Answer:
- The domain refers to the set of possible input values.
- The range is the set of possible output values.
Step-by-step explanation:
the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.