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Alex787 [66]
3 years ago
13

If n represents the amount of songs stored on a MP3 player, analyze the meaning of the expressions n + 7, n - 2, 4n, and n/2

Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0
N+7 - 7 more songs added
n-2 - 2 songs deleted (subtracted)
4n - 4 times more songs than before
n/2 - the number of songs cut in half (divided by 2)
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Enter the values of x, y, and z. The diagram is not to scale.
nydimaria [60]

Answer:

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Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180

38 + 56 + x = 180

94 + x = 180 subtract 94 from both sides

x = 86

The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle so the value of z:

56 + 38 = 94

again the sum of interior angles in a triangle is equal to 180:

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113 + y = 180 subtract 113 from both sides

y = 67

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3 years ago
In ∆PQR, ∠P = 90degrees , PQ= 12 cm, PR=16cm. Find ∠Q
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Answer:

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Step-by-step explanation:

Given that ∆PQR, ∠P = 90degrees , this means that the triangle is a right angled triangle

Hence using the notation

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Considering  ∠Q and the given sides

PR=16cm is the opposite side,

PQ= 12 cm is the adjacent side hence we use TOA

Tan Q = 16/12 =

Q = Arc tan 16/12

= 53.13 degrees

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