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Lera25 [3.4K]
3 years ago
13

Just a quick question. Is 21 the right answer for y?

Mathematics
1 answer:
slava [35]3 years ago
7 0

Answer:

I think it is right but not sure

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Which experssion is equivalent to 4 to the power of 6 times 4 to the power of negative 8?
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Determine whether the lines are parallel or perpendicular. Explain your answer
Masja [62]

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Neither

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mafiozo [28]

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3 years ago
Nour drove from the Dead Sea up to Amman and her altitude was 409 meters below sea level. When she arrived in Amman 2 hours late
kozerog [31]

Answer:

y=  704.5x - 409

Step-by-step explanation:

Complete question is : . Complete the equation for the relationship between the altitude and number of hours.

SOLUTION

By plotting altitude on y-axis and time or duration of travel on x-axis of the graph, we will have the the location of Nour at t = 0 will be represented by (0, -409)

when t = 2 hours location points will be  at (2, 1000).

As you know, at a constant rate her altitude is increasing , we will have a linear graph with equation y = mx + b --> eq(1)

Slope of the line is given by:

m= (y-y') / (x-x') => (1000+409)/(2-0)

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y-intercept 'b' is -409

Therefore, the eq(1) will become

(1)=> y=  704.5x - 409

Where, 'y' represents Nour's altitude(in meters) relative to sea level after 'x' hours

6 0
4 years ago
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