Answer:
Step-by-step explanation:
f(x) = x^2 + 3x - x/2
f(x) = x^2 + 2.5x
- 3x - 1/2x =
- 6x/2 - 1/2x =
- 5x/2 =
- 2.5x
f(6) = 6^2 + 2.5*6
f(6) = 36 + 15
f(6) = 51
Since those lines are parallel, we know that A + B = 180°
So, we have:
8x + 74 + 2x + 56 = 180
10x + 130 = 180
10x = 180 - 130
10x = 50
x = 5
B = 2x + 56
B = 10+56=66
(To check:
A = 8x + 74
A = 40+74=114
114+66=180)
Answer:
The y-intercept is 4 so you start at 4 on the y-axis. The move down 1 over 5 to get the negative part of the slope.
Step-by-step explanation:
I think the answer is 22.5
Answer:
(x-10)^2 + (y-2)^2 = 49
Step-by-step explanation:
I'm assuming that 10-2 means (10,2)
Equation of circle:
(x-a)^2 + (y-b)^2 = r^2
Plugging in the values that we know:
(x-10)^2 + (y-2)^2 = 7^2
(x-10)^2 + (y-2)^2 = 49
Hope this helps!