Angles in a triangle total 180°
180=128+5x+10+9x
180-128-10=5x+9x
42=14x
x=3
Answer:
B. (x-9)^2 + (y + 7)^2 = 4
Step-by-step explanation:
The standard form of a circle is (x-h)^2 + (y-k)^2 = r^2. Hopefully you can memorize that, because it's very helpful in these problems!
(h,k) is our center, and r is our radius, so plug those values into the standard form:
(x - 9)^2 + (y + 7)2 = 2^2
2^2 = 4, so
<u>B. (x - 9)^2 + (y + 7)2 = 4 is our answer!</u>
Answer:
See explanation.
Step-by-step explanation:
We need a point and a slope to have a point slope equation.

We need a slope and y-intercept to write in slope intercept form.

A)
or 
B) 
C) 
D) 
Answer:
15 yards
Step-by-step explanation:
proportion:
2/5:6/X
2x=30
x=15
Answer:
8.5*
Step-by-step explanation:
825 million is
825,000,000
so you need to do 8.25 and then 10 to the power of 8
so the answer is 8.5*