there are 60 minutes marks on a clock
<span> 360/60 = 6</span>
<span> 6 degree between
every minute</span>
<span> From 1:25 to 1:50
there are 25 minutes</span>
25 x 6 = for a total of 150 degrees
150*pi/180 = 5pi/6 radians. ( 2.61799 radians)
Total distance the tip of minute
hand has traveled in this time = 2pi*(4 in) * (5pi/6)/(2pi) = 10pi/3 inches (10.47 inches)
Answer:
y = (x - 2)² + 9
Step-by-step explanation:
To obtain the equation in vertex form use the method of completing the square.
Add/ subtract ( half the coefficient of the x- term)² to x² - 4x
y = x² + 2(- 2)x + 4 - 4 + 13
= (x - 2)² + 9 ← in vertex form
It looks about one third of the bar. So it'd be a third of 400. 400÷3= your answer.
The answer is 2.5. I hope that helps you.