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nadya68 [22]
3 years ago
10

A sound engineer is positioning a cardioid microphone for a music concert. Which equation corresponds to a microphone facing the

correct direction? O r = -4 + 4 sin(0) O r = 4 - 4 sin(0) O r = -4 + cos(0) Acos Or = 4 - 4 cos(0)​
Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:

D r = 4 − 4 cos(θ)

Step-by-step explanation:

Right on edge

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A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The
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3 years ago
Factor 8X squared + 10x + 2​
mojhsa [17]

Answer:

2(4x + 1)(x + 1)

Step-by-step explanation:

Given

8x² + 10x + 2 ← factor out 2 from each term

= 2(4x² + 5x + 1)

To factor the quadratic

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 4 × 1 = 4 and sum = + 5

The factors are + 1 and + 4

Use these factors to split the x - term

4x² + x + 4x + 1 ( factor the first/second and third/fourth terms )

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= (4x + 1)(x + 1), thus

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3 years ago
For what values of y:is the value of the fraction 7−2y /6 greater than the value of the fraction 3y−7 /12 ?
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Let's start by plugging in 1 for y. You get 7-2/6, which is 5/6. The other equation is 3-7/12, which equals -1/3. Now let's try 10. You get 7-2(10)/6, which is -13/6. The other equation is 3(10)-7/12, which is 23/12, and is larger!

1 is a value of y that could work!

Hope this helps!! :)
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3 years ago
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So, the area of the trapezoid is 287 cm².
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