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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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WINSTONCH [101]

Answer:

Step-by-step explanation:

The vertex of an isosceles triangle must be an even number because its identical base angles are congruent. Therefore if the angle at the vertex is x, then the vertex of an isosceles triangle must be an even number because its identical base angles are congruent. Therefore if the angle at the vertex is x, then the .

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2 years ago
Mrs. Hall bought a package of 8 pencils for $4.64. What is the unit price per pencil?
ahrayia [7]

Answer:

$0.58

Step-by-step explanation:

There are 8 pencils per package. To find the value of each pencil, divide the cost by 8

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8 0
2 years ago
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Find the measure of the indicated angle to the nearest degree
Alisiya [41]

Answer:

The answer to your question is below

Step-by-step explanation:

14) sin Ф = 32/33

    sin Ф = 0.9697

        Ф = 75.86°

15) sin Ф = 16/36

     sin Ф = 0.444

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16) sin Ф = 29/36

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          Ф = 53.66°

17) cos Ф = 11/34

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          Ф = 71.12°

18) sin Ф = 21/40

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           Ф = 31.67°

19) cos Ф = 6/14

     cos Ф = 0.429

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20) cos Ф = 38/39

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3 0
3 years ago
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MatroZZZ [7]

Step-by-step explanation:

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use formula : (Xb-Xa)/ (Yb-Ya)

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8 0
3 years ago
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nexus9112 [7]

Answer:

6

Step-by-step explanation:

Area = 1/2( base times height)

since the height is perpendicular to the base

therefore

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4 units away from the y=2 line is at the y coordinate of 6

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