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Snowcat [4.5K]
3 years ago
12

Marc left his house to drive to work. As he heads down his street, his speed increases steadily until he sees the stop sign at t

he end of the street. Then his speed decreases steadily until he comes to a complete stop at the stop sign. After waiting at the stop sign for his turn to go, Marc’s speed steadily increases until he reaches the speed limit. Marc then drives at this constant speed until he approaches his office. He slows down steadily and comes to a complete stop in front of his office.
Which graph represents Marc’s drive to work?

Mathematics
2 answers:
nydimaria [60]3 years ago
8 0
The fourth one is definitely the answer <span />
lesantik [10]3 years ago
3 0
The third graph i believe ot sure tho but i remeber taking this quiz and it was tht anwser
 

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Answer:

x = 3/2 + sqrt(17)/2 or x = 3/2 - sqrt(17)/2

Step-by-step explanation:

Solve for x over the real numbers:

x/x - 1 = x - 3 - 2/x

x/x - 1 = 0:

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(x^2 - 3 x - 2)/x = 0

Multiply both sides by x:

x^2 - 3 x - 2 = 0

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Add 9/4 to both sides:

x^2 - 3 x + 9/4 = 17/4

Write the left hand side as a square:

(x - 3/2)^2 = 17/4

Take the square root of both sides:

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Add 3/2 to both sides:

x = 3/2 + sqrt(17)/2 or x - 3/2 = -sqrt(17)/2

Add 3/2 to both sides:

Answer: x = 3/2 + sqrt(17)/2 or x = 3/2 - sqrt(17)/2

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