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taurus [48]
3 years ago
13

A right triangle has a 30 degree angle. the leg adjacent to the 30 degree angle measures 25 inches what is the inches. What is t

he length of the other leg round to the nearest tenth
Mathematics
1 answer:
yanalaym [24]3 years ago
8 0
Tan(30°) = opposite/adjacent  ⇒

opposite = adjacent * tan(30°) = 25 * 0.5773 ≈14.4 in  ← <span>to the nearest tenth.</span>
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A number consist of 2 digits whose sum is 8, If 8 is subtracted from the number, the digits interchange their place. The number
Novay_Z [31]

Step-by-step explanation:

Let's say the two digit number is 10x + y, where x is the first digit and y is the second digit.

The sum of the digits is 8:

x + y = 8

If 8 is subtracted from the number, the digits switch place.

10x + y − 8 = 10y + x

Simplify the second equation:

9x − 8 = 9y

Substitute from the first equation.

y = 8 − x

9x − 8 = 9 (8 − x)

9x − 8 = 72 − 9x

18x = 80

x = 4.444

There's a problem.  x isn't an integer.  Are you sure you copied the problem correctly?  Perhaps you meant if 18 is subtracted from the number, the digits switch place.

9x − 18 = 9 (8 − x)

9x − 18 = 72 − 9x

18x = 90

x = 5

y = 8 − x

y = 3

So the number is 53.

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3 years ago
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Lostsunrise [7]

For this case we have a function of the formy = f (x)where:

f (x) = - 2x-1

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f (-7) = - 2 (-7) -1

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Answer:

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Step-by-step explanation:

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80p = 80 cents

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(changing the signs, that's it)

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Now 4 small bottles is the same as 2 large ones, so if he bought 2 large bottles: $1.50 * 2 = $3.00.

$3.20 - $3.00 = 0.20 cents.

Amir would've saved 0.20

P.S. What is "p" in European money

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3 years ago
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nika2105 [10]

Step-by-step explanation:

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