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3 years ago

What is the radius of 81π square inches

1 answer:

3 0

It is 9 inches because the formula for the area of a circle is πr2 where the r represents the radius of the circle

The pi can be canceled out =

πr2 and 81 π leaving with

R2 and 81

The r2 represents a square number. So square root 81 and you would result in 9 as your answer

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Solve 5x(x-6)(4x+9)=0

xxTIMURxx [149]

Greetings and Happy Holidays!

Solve for x.
$5x(x-6)(4x+9)=0$ <span>

Distribute the parenthesis:
</span> $5x(x-6)(4x+9)=0$

$(5x^2-30x)(4x+9)=0$

$(20x^3-120x^2)+(45x^2-270x)=0$

Combine like terms:
$20x^3-75x^2-270x=0$

Factor out GCF (5x):
$5x(4x^2-15x-54)=0$

Factor the Complex Trinomial:
$5x(4x^2+9x-24x-54)=0$

$5x(x(4x+9)-6(4x-9))=0$

$5x((4x+9)(x-6))=0$

Set Factors to Equal 0:
$5x=0$

$x=0$

or

$4x+9=0$

$4x=-9$

$x=\frac{-9}{4}$

or

$x-6=0$

$x=6$

The Answers Are:
$\boxed{x=0} \\ \boxed{x= \frac{-9}{4}} \\ \boxed{x=6}$

I hope this helped!
-Benjamin

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2 years ago

Bass Pro has a sale on boats! Just what you have always wanted and it is $3000 cheaper than it usually

seraphim [82]

Answer:

$4500

Step-by-step explanation:

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4 0

3 years ago

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Arada [10]

Answer:

Step-by-step explanation:

If it's a 15 dollar variable fee and a flat 10 our equation looks like this

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which is the same as A

Now that we know the equation we can just plug a couple of numbers in

when c=3 what is h

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3 years ago

Read 2 more answers

Explain how you can use place-value patterns to describe how 50 and 5000 compare

Masteriza [31]

If you have 50. and want to make it 5000 you can move the decimals point over 2 which would also be ×100

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3 years ago

What is 3.41 ((with 41 repeating at the end)) as a simplified fraction?

Andre45 [30]

<u>3 41/99. </u>

3.4141414...

100x= 341.4141414...

341.414141414...

- 3.41414141414..= 338

99x= 338/99 or 3 44/99

5 0

3 years ago

What is the radius of 81π square inches​

What is the radius of 81π square inches