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2 years ago

8

martha and andy ordered a chicken pot pie to share.Andy ate 1/3 of the pie, and martha ate 1/2 of the pie. who ate more pie? How

do you know?

1 answer:

Anna007 [38]2 years ago

3 0

Martha because of you cut the pie in half one piece is bigger than if you cut the pie into thirds and take one piece

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A cylinder shaped can needs to be constructed to hold 400 cubic centimeters of soup. The material for the sides of the can costs

LenKa [72]

Answer:

The dimensions of the can that will minimize the cost are a Radius of 3.17cm and a Height of 12.67cm.

Step-by-step explanation:

Volume of the Cylinder=400 cm³

Volume of a Cylinder=πr²h

Therefore: πr²h=400

$h=\frac{400}{\pi r^2}$

Total Surface Area of a Cylinder=2πr²+2πrh

Cost of the materials for the Top and Bottom=0.06 cents per square centimeter

Cost of the materials for the sides=0.03 cents per square centimeter

Cost of the Cylinder=0.06(2πr²)+0.03(2πrh)

C=0.12πr²+0.06πrh

Recall: $h=\frac{400}{\pi r^2}$

Therefore:

$C(r)=0.12\pi r^2+0.06 \pi r(\frac{400}{\pi r^2})$

$C(r)=0.12\pi r^2+\frac{24}{r}$

$C(r)=\frac{0.12\pi r^3+24}{r}$

The minimum cost occurs when the derivative of the Cost =0.

$C^{'}(r)=\frac{6\pi r^3-600}{25r^2}$

$6\pi r^3-600=0$

$6\pi r^3=600$

$\pi r^3=100$

$r^3=\frac{100}{\pi}$

$r^3=31.83$

r=3.17 cm

Recall that:

$h=\frac{400}{\pi r^2}$

$h=\frac{400}{\pi *3.17^2}$

h=12.67cm

The dimensions of the can that will minimize the cost are a Radius of 3.17cm and a Height of 12.67cm.

3 0

3 years ago

No link just right answer

stiv31 [10]

1/8

Explanation:
Volume of a cube formula: V=s^3 or s•s•s
s=1/2
V= (1/2)^3
=1/8

3 0

2 years ago

Luke is building a storage building and needs to have a slab of concrete poured. He knows the contractor charges an initial cost

kherson [118]

The answer is A.

y is the total cost, than you would need to multiply x, the number additional number of square feet, which is 3.5x. you would then add 95 dollars to the equation to represent the initial fee. So the equation would look like Y=3.5x+95.

- beanz

8 0

3 years ago

Read 2 more answers

Somebody help me this is on my final and I don’t wanna fail it please somebody help me

Radda [10]

Answer:

D

Step-by-step explanation:

they both equal each other. 5x+7=9x-63

then you would take 70 divided by 4

which equals 17.5

3 0

3 years ago

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Given vxy and vwz what is vw

Leto [7]

Answer:

VW=21.6

Step-by-step explanation:

VW/(44-27.5)=36/27.5

VW/16.5=36/27.5

27.5SW=36(16.5)

27.5VW=594

VW=21.6

6 0

3 years ago