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sveticcg [70]
3 years ago
14

Me Kaplan is ordering 30 flash drives for the students in his class. If each one costs $11.95 how much will he pay

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0

30 \times 11.95 = 358.5
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What is the length of the diagonal of a square with side lengths 7 square root of 2 ? round to the nearest tenth if necessary?
mr_godi [17]
There is 2 ways to solve this type of question.

Method 1
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Formula
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a² + b² = c²

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Apply the formula
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(7√2)² + (7√2)² = c²
c² = 98 + 98
c² = 196
c = √196
c = 14

--------------------------------------------------
Ans: The diagonal length is 14cm 
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_____________________________________________________________

Method 2
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Identify the triangle
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This is a special triangle
45° - 45° - 90°

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Property of the Angles 
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x - x - x√2

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Find hypotenuse
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Given that the non-hypotenuse is 7√2

Hypotenuse =  (7√2)(√2)
Hypotenuse =  7 x 2
Hypotenuse = = 14cm

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Ans: The diagonal length is 14cm 
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Step-by-step explanation:

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Step-by-step explanation:

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