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harkovskaia [24]
3 years ago
14

Find the value of x^2 + 1 divided by x^2 if x-1 divided by x =5

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

x^2+1/x^2

(x+1/x)^2 = x^2+1/x^2 +2

(5)^2 = x^2+1/x^2 + 2

25 = x^2+1/x^2 + 2

25-2 = x^2+1/x^2

23 = x^2+1/x^2

Step-by-step explanation:

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The area of a regular hexagon is 14.96 cm2. What is the perimeter of the hexagon? A. 1.2 space c m B. 1.2 square root of 3 space
victus00 [196]

Answer:

14.4 cm

Step-by-step explanation:

The formula for the area of a regular hexagon in terms of its side length s is ...

... A = (3√3)/2·s²

Then the side length is ...

... s = √(2A/(3√3))

and the perimeter is ...

... P = 6s = √(8A√3)

For your area, this is ...

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What is the y-intercept, b, of the additive relationship represented by this table?
mina [271]

Answer:

  • b = 3

Step-by-step explanation:

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<u>Find the slope:</u>

  • m = (6 - 4)/(3 - 1) = 2/2 = 1

<u>Find b using the pair (1, 4):</u>

  • 4 = 1*1 + b
  • b = 4 - 1
  • b = 3

<u>The line is:</u>

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A train leaves boston and travels toward its destination at a speed of 60 mph. One hour later, an express train leaves Boston an
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Taking into account the supplied speeds, Boston is from the destination to:

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<h3>Calculation of the distance between Boston and Place of Destination</h3>

To identify the distance between Boston and the destination of the trains, it must be remembered that the <u>speed</u> mentioned for each one is a reference to the distance traveled per hour, therefore, after each hour, each train will travel :

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  • Express train: 80 miles

According to the information given, when the express train leaves, the regular train has a 60-mile lead, which is getting shorter hour by hour because the express train travels 20 miles per hour more than the normal train.

Therefore, in <u>three hours</u>, the express train would catch up with the regular train, calculating the distance thanks to the speed formula:

  • Speed =\frac{Distance}{Time}

And clearing the distance:

  • Distance=Speed*Time
  • Distance=80\frac{miles}{hour}*3hours
  • Distance=240miles

Therefore, the destination would be <u>240 miles</u> from Boston, which would take four hours by regular train and three hours by express train.

If you want to learn more about Mathematics, you can visit the following link: brainly.com/question/24600056

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2 years ago
What is-5/8-8/5?<br> PLEASE HELP!!!!!
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Answer:

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Step-by-step explanation:

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3 years ago
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