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MariettaO [177]
2 years ago
5

A shirt is on sale for 30%

Mathematics
2 answers:
julsineya [31]2 years ago
7 0

Answer:

it would be a 14$ t-shirt there for you save 6 dollars.

Step-by-step explanation:

do the math in a calculator. :D

Andrei [34K]2 years ago
6 0

Answer:

$6

Step-by-step explanation:

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3 years ago
Tara standing 20 feet from a tree and the angle of elevation is 72°. About how tall is the tree?
Zinaida [17]

Answer:

Approx 61.554 feet

Step-by-step explanation:

Since we are dealing with the opposite and adjacent sides, we will use tangent as our ratio.

Since the angle of elevation is 72 degrees, the left side of our equation is tan(72).

The right side of the equation is opposite over adjacent.

x/20

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3 years ago
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9514 1404 393

Answer:

  k = -1

Step-by-step explanation:

Put the given value of x in the equation, and solve the resulting equation for k.

  2(5 -3) +k(1 +2·5) = k - 5 - 1

  2(2) +k(11) = k -6 . . . . simplify a bit

  10k = -10 . . . . . . . . . . add -4-k to both sides

  k = -1 . . . . . . . . . . . . . divide by 10

The value of k is -1.

_____

<em>Check</em>

Use k = -1 in the original equation and solve for x.

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  2x -6 -1 -2x = -x -2 . . . . eliminate parentheses

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aliya0001 [1]

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