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lawyer [7]
2 years ago
12

Hi can someone help me with this

Mathematics
1 answer:
WINSTONCH [101]2 years ago
5 0

Answer:

86 degrees

Step-by-step explanation:

180 - (74 + 20) = 86

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Which expression is equivalent to the given expression?<br><br> 3x(1.05)
erica [24]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

3x(1.05)   Equation/Question

Step 2

3x(1.05)   Simplify

3x(1.05)

Step 3

3x(1.05)   Multiply them

Answer

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8 0
2 years ago
Castle spent half of his weekly allowance buying pizza. To earn more money his parents let him mow the lawn for $10. What is his
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3 years ago
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A musical instrument has a pitch of 220 hertz when the wavelength is 3 feet. When the wavelength is 4 feet, the pitch is 165 her
earnstyle [38]
We know that
Inverse Variation is a<span> relationship between two variables in which the product is a constant
so
let
x------> a pitch of a musical instrument
y------> </span><span>the wavelength
x*y=k

find the value of k

for x=</span><span>220 hertz   y=3 ft
</span><span>x*y=k
220*3=k
k=660

</span>for x=165 hertz   y=4 ft
x*y=k
165*4=660
k=660<span>

the answer part a) is
</span><span>the type of variation between pitch and wavelength is an inverse variation
</span>
part b) <span>What is the pitch when the wavelength is 5 feet?
x=?
y=5 ft
k=660
x*y=k------> solve for x
x=k/y----------> x=660/5-----> x=132 hertz

the answer Part b) is
132 hertz</span>
4 0
3 years ago
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Iteru [2.4K]
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I hope this helps you
6 0
3 years ago
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KiRa [710]

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Step-by-step explanation:

6 0
3 years ago
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