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MakcuM [25]
2 years ago
10

A cylinder has a radius of 5x + 4 and a height of 2x + 5. Which polynomial in standard form best describes the total volume of t

he cylinder? Use the formula v=πr²h for the volume of a cylinder
Mathematics
1 answer:
Nana76 [90]2 years ago
6 0

Answer:

Step-by-step explanation:

Volume = pi·(r^2)*h

r = radius = (5x+4)

h = height = (2x+5)

 

Volume = pi·(r^2)

Volume = pi·(5x+4)^2*(2x+8)

Volume = pi·(25x^2+40x+16)*(2x+8)

Volume = pi·(50x^2+80x+32+200x^2+32x+128)

Volume = pi·(250x^2+112x+160)

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Solve for<br> 8 - 6r + 3 = 5
Oksanka [162]

Answer:

r = 1

Step-by-step explanation:

8 - 6r + 3 = 5

Combine like terms

11 - 6r = 5

Subtract 5 from both sides

6 - 6r = 0

Add 6r to both sides

6 = 6r

Divide both sides by 6

1 = r

5 0
2 years ago
Lenny bought a motorcycle . He paid 12.5% in tax . The tax added $1437.50 to the price of the motorcycle . What was the price of
vredina [299]

Answer:

$11500

Step-by-step explanation:

Given

Tax amount=$1437.50

Tax percentaege=12.5%

So, we have to find the price of motorcycle whose 12.5% is 1437.50

Mathematically writing,

Let  

x be the price of motorcycle without tax

then, the equation will be written as:

x*0.125=1437.50

x=  1437.50/0.125

x=11500

So the price of motorcycle without tax was $11500..

7 0
2 years ago
What is 1 and 2/5× 7
OleMash [197]
7/5 x 7/1 = 49/5 or 9 4/5
3 0
3 years ago
Read 2 more answers
0=2x+3(3x-4)-(-x+14)<br><br> Fraction answer need help!!!
blondinia [14]
<span>0=2x+3(3x-4)-(-x+14) 
Follow BEDMAS
</span><span>0=2x+9x-12-(-x+14) 
</span>0=2x+9x-12+x-14
Add like terms
0=11x-12+x-14
0=12x-12-14
0=12x-26
Flip the eqaution
12x-26=0
Move -26 across the equal sign
12x=0+26
12x=26
x=26/12
x=13/6

Hope this helps! A thanks/brainiest answer would be appreciated :)
5 0
3 years ago
1/4 divides by 5/13=?
katrin2010 [14]
1/4 dividend by 5/13 is the same as
1/4 multiplied by 13/5 it’s inverse
1 x13 / 4x 5 = 13/20
8 0
3 years ago
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