Circumference = 2pi r
80/360 x 2pi x r = 24pi
r = 54
(6.4 x 10^8 meter/sec) x (1 km / 1,000 meter) x (3,600 sec/hour) =
(6.4 x 10^8 x 3,600 / 1,000) km/hour =
177-7/9 km/hour
Answer:
I think there is 20 questions.
Step-by-step explanation:
80 divided by 20 = 4
Hope this helps!
The slope formula: y = mx +b
m = -2, therefore we have: y = -2x + b
The line passes throught the point M(-1, -3) → x = -1, y = -3.
Substitute to the equation:
-3 = -2 · (-1) + b
-3 = 2 + b |-2
b = -5
y = -2x - 5 |+2x
Answer: 2x + y = -5
