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Alexus [3.1K]
3 years ago
15

Giving 20 points to the right person if your wrong your getting reported

Mathematics
1 answer:
Paha777 [63]3 years ago
8 0

Answer:

730

Step-by-step explanation:

A(X)= 2πRH+2πR^2

A(X)=2π(7.5)(8)+2π(7.5)^2=730.42 = 730

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Determine whether the relationship is a function. Complete the explanation.
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In a volcano, erupting lava flows continuously through a tube system about 17 kilometers to the sea. Assume a lava flow speed of
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Answer:

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L 1.3.3 Quiz: Graphing Functions
son4ous [18]
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What is the equation when y=5x+4 is reflected over the x-axis, y-axis & y=x?
tigry1 [53]

Answer:

A) y=-5x-4

B) y=-5x+4

C) y=\frac{x-4}{5}

Step-by-step explanation:

So we have the equation:

y=5x+4

Let's write this in function notation. Thus:

y=f(x)=5x+4

A)

To flip a function over the x-axis, multiply the function by -1. Thus:

f(x)=5x+4\\-(f(x))=-(5x+4)

Simplify:

-f(x)=-5x-4

B) To flip a function over the y-axis, change the variable x to -x. Thus:

f(x)=5x+4\\f(-x)=5(-x)+4

Simplify:

f(-x)=-5x+4

C) A reflection over the line y=x is synonymous with finding the inverse of the function.

To find the inverse, switch x and f(x) and solve for f(x):

f(x)=5x+4

Switch:

x=5f^{-1}(x)+4

Subtract 4 from both sides:

x-4=5f^{-1}(x)

Divide both sides by 5:

f^{-1}(x)=\frac{x-4}{5}

And we're done :)

7 0
3 years ago
Really help me please
Ivanshal [37]
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Hope this can help! :)

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