Answer:
proportional because you can divide 16 and 36 by four and get 4/9
Just did a specific one of these; let's do the general case.
The point nearest the origin is (a,b).
The line from the origin through the point is
The line we seek is perpendicular to this one. We swap the coefficients on x and y, negating one, to get the perpendicular family of lines. We set the constant by plugging in the point (a,b):
That's standard form; let's plug in the numbers:
<span>potential; kinetic is the answer.</span>
We know Bianca delivers 100 newspapers every 2 days.
So we must find out how many papers she delivers in 1 day.
100 ÷ 2 = 50
Bianca delivers 50 papers in 1 day.
Now we must multiply that by 7.
50 × 7 = 350
We get 350 papers per week.
The answer is 350.
EF is tangent to the circle we'll assume; otherwise there's no progress.
Call the center C. ECD is isosceles, formed from two radii and the chord.
Angle CED is complementary to DEF
CED = 90 - 65 = 25 degrees
CDE is congruent, isosceles triangle and all that: CDE=25
That leaves DCE=180-25-25=130 degrees
That's the measure of arc DE as well:
Answer: 130 degrees, choice A
