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Aleksandr-060686 [28]
3 years ago
7

Knowing that sin 30° = 1/2 , what is a?

Mathematics
2 answers:
sergeinik [125]3 years ago
5 0

Answer:

Answer: B (14)

Step-by-step explanation:

Think- what is 7 half of? 7x2 = 14. Therefore, 14 will be your answer

umka2103 [35]3 years ago
3 0

Answer: D

Step-by-step explanation:

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Given two numbers x and y such that:

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<span>two numbers will maximize the product g</span>

from  equation (1) 

y = 12 - x  

Using this value of y, we represent xy as

xy = f(x)= x(12 - x)

 f(x) = 12x - x^2

Differentiating the above function:

f'(x) = 12 - 2x

Maximum value of f(x) occurs at point for which f'(x) = 0.

Equating f'(x) to 0 we get:

12 - 2x = 0

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> x = 12/2 = 6

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y = 12 - 6 = 6

Therefore, value of xy is maximum when:

x = 6 and y = 6

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