(-3,7) and (3,3)
Slope = (7 - 3)/(-3 - 3) = -4/6 = -2/3
Equation:
y - 3 = -2/3 (x - 3)
y - 3 = -2/3 x + 2
y = -2/3 x + 1
Answer
y = -2/3 x + 1
Answer:
Step-by-step explanation:
=
The freight train speed = 22 mph
The passenger train speed = 28 mph
Step-by-step explanation:
Assign the speed of the freight train as; <em>x </em>mph
Since the passenger train travels 6 mph faster than the freight train, its speed will be; (<em>x + 6</em>) mph
In 2 hours, the freight and passenger trains will have traveled (distance = speed * time);
2<em>x</em> and 2(<em>x + 6</em>) miles respectively
Both add up to 100 miles. Therefore;
2x + 2(x +6) = 100
4x + 12 = 100
4x = 88
x = 22
x + 6 = 28
The freight train speed = 22 mph
The passenger train speed = 28 mph
Answer:
D
Step-by-step explanation: I just took the quiz.
Since triangle ABC is a isosceles triangle
∠ABD = 66°
(Base angle of isosceles triangle)
∠BAC = 180° - (66° × 2) = 48°
y = 48° ÷ 2 = 24°
z = 90°
Answer is C.