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guajiro [1.7K]
3 years ago
13

a large balloon in the shape of a sphere is being filled with helium. The balloon has a radius of 1 foot. Helium costs $0.80 per

cubic foot. What is the cost of filling the balloon with helium?
Mathematics
1 answer:
zhenek [66]3 years ago
4 0

Answer:

$3.35

Step-by-step explanation:

volume of balloon in the shape of sphere= 4/3 * pi * r^3 = 4.189 cubic foot

cost of 1 cubic foot of helium = 0.8

cost of 1 * 4.189 cubic foot of helium = 0.8 * 4.189 = 3.35

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HELP ME!!!! PLEASE (I have Points)
maw [93]

Answer:

yes pick .98 l

Step-by-step explanation: .

3 0
2 years ago
You have invested $2000 at 3.75% annual interest.<br> How much money do you have after 20 years?
lbvjy [14]

Answer:

  • $3500

Step-by-step explanation:

<u>Let's use PRT/100 to see what will be the total amount.</u>

  • Total amount = Interest + Principle

<u>Solution:</u>

  • PRT/100 = Interest
  • => 2000 x 3.75 x 20 years/100
  • => 20 x 3.75 x 20 = Interest
  • => 2 x 2 x 375 = Interest
  • => 4 x 375 = Interest
  • => 1500 = Interest
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Hence, after 20 years, the amount earned is $3500.

6 0
2 years ago
1. Which expression is the completely factored form of x^6−64y^3 ?
GalinKa [24]
1. A (x²-4y)³
2. ?=5
3. (x+3)(3y-5)
4. (4y+7)(5x-1)
5 0
3 years ago
Una escalera se apoya en una pared con un ángulo de 40º. Si se apoyase con un ángulo de 55º, se conseguiría una altura 35 cm may
sdas [7]

Answer: L ≈ 2.0 m

Step-by-step explanation:

Lsin40 = h

Lsin55 = h + 0.35

Lsin55 = Lsin40 + 0.35

Lsin55 - Lsin40 = 0.35

L(sin55 - sin40) = 0.35

L = 0.35 / (sin55 - sin40)

L = 1.98452 ≈ 2.0 m

3 0
2 years ago
Another retake !! help it’s due today
tiny-mole [99]

Answer:

Maurico started with more :)

Step-by-step explanation:

Mariah started with 150 while Maurico started with around 190 so he has more to start with :)

Have a great day!

Please rate and mark brainliest!

4 0
1 year ago
Read 2 more answers
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