change 40% to a decimal which is .4 and then multiply .4 times 40 and you get your answer.
To find the equation of the line we will need to find slope and the y-intercept.
Given: (-3,9), (-3,-5)
What we know:
slope=m=(y2-y1)/(x2-x1)
m=(-5-9)/9-3-(-3))=-14/0
m=undefined
When slope=m is undefined we have an a line x=-3. That means that for every y the x value is always -3. This line x=-3 is a vertical line on the graph at -3.
Answer: The speed is 105 miles/ hr and the direction of the train would be East if the girl is the frame of reference.
Step-by-step explanation:
Since we have given that
Speed of train = 100 miles per hour
Speed of girl = 5 miles per hour
Since the girl is moving towards the back of train.
So,it means train and girl are moving in opposite direction.
So, Relative speed would be

Hence, the speed is 105 miles/ hr and the direction of the train would be East if the girl is the frame of reference.
Answer:
=x^4−2x^3−20x^2+46x−21
if you can give me brainliest that would be great :)
Answer:
A
Step-by-step explanation: