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3 years ago

The point (12, 5) is units from the origin.

Mathematics

1 answer:

Taya2010 [7]3 years ago

7 0

Answer: 13

Step-by-step explanation:

The distance d is given by the Pythagorean Theorem

d² = 12² + 5²

We don't have to calculate anything if we remember that 5/12/13 is the second triple on the list, right after 3/4/5.

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If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A U B?

Phoenix [80]

Answer:

Answer is A U B = {3,5,7}

3 0

3 years ago

The perimeter of a rectangle is about 13.9 cm. If you double the width of the rectangle the perimeter is about 17.8 cm. Find the

fredd [130]

Answer:

5cm by 1.95cm

Step-by-step explanation:

Let the length of the rectangle be x

Let the width be y

Perimeter of a rectangle = 2x + 2y

If the initial perimeter of a rectangle is about 13.9 cm, then;

13.9 = 2x + 2y ..... 1

If when the width is double the perimeter is 17.8cm, then;

17.8 = 2x + 4y ..... 2

Subtract 1 from 2;

13.9 - 17.8 = 2y - 4y

- 3.9 = -2y

y = 3.9/2

y = 1.95 cm

Substitute y = 1.95 into 1 to get x;

From 1;

13.9 = 2x + 2y

13.9 = 2x + 2(1.95)

13.9 = 2x + 3.9

2x = 13.9-3.9

2x = 10

x = 5 cm

Hence the dimension of the smaller triangle is 5cm by 1.95cm

7 0

3 years ago

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g100num [7]

Answer:

2.828427125

Step-By-Step Explanation:

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3 years ago

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jasenka [17]

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3 years ago

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Little Johnny is fleeing from a horde of zombies. He is 4000 feet from a safe zone where a gate will be closed in 3 minutes. If

Free_Kalibri [48]

Answer:

Johnny will be able to reach the safe zone before the gate is closed.

Step-by-step explanation:

Given that:

Distance of Little Johnny from safe zone = 4000 feet

Time = 3 minutes

Speed = 22 mph