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drek231 [11]
2 years ago
10

Lianne drew a sphere with a radius of 7 in. She calculated its volume and wrote it below.

Mathematics
2 answers:
Sidana [21]2 years ago
7 0

Answer:

Step-by-step explanation:

The volume of a sphere is found by \frac{4}{3} \pi r^3

The radius is 7 so this should give you (4/3)pi(7)^3

(4/3)pi(343)

\frac{1372}{3} \pi

Hopefully this is the format it is in... Hope this helps :)

Vlad1618 [11]2 years ago
7 0

Answer:

1372

Step-by-step explanation:

Volume of a sphere can be found by using the formula V= 4/3 \pi(r^{3}) where r is the radius of sphere.

Thank me or give 5 stars if you learned! Or if it is correct!

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A fish tank has 16 gallons, the length is 7 feet and the width is 2 feet.Find the hypotenuse length using the Pythagorean theore
ollegr [7]
The Pythagorean Theorem states that a² + b² = c², c being the hypotenuse.


Substitute known values into the equation.

7² + 2² = c²
49 + 4 = c²
c² = 53
c = √53
c = 7.28010989


Answer: The hypotenuse's length is 7.3 feet.
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shusha [124]

Answer:

I think it's A

Step-by-step explanation:

6 0
2 years ago
Solve for x in the following equation.<br> X/5=25<br> X=?
worty [1.4K]

Answer:

125

Step-by-step explanation:

25 × 5 = 125

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4 0
3 years ago
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Would like to know what I am doing wrong and have an answer
Paul [167]

A can is a cylinder shape.

Volume of a cylinder = PI x r^2 X h

r is the radius and h is the height.

The diameter is given as 3.8, the radius is half that: 3.8 /2 =  1.9

Height is given as 6.5

Volume = 3.14 x 1.9^2 x 6.

Volume = 73.6801 cubic inches.

Rounded to the nearest tenth = 73.7 cubic inches.

4 0
3 years ago
Mary knits scarves and sweaters to sell. Scarves take 2 hours to knit and sweaters take 10 hours. Mary would like to spend no mo
sveticcg [70]

Answer:

The system of inequalities is

2x+10y\leq 40

x+y\geq 5

The solution in the attached figure

Step-by-step explanation:

<u><em>The question is</em></u>

Write a system of linear inequalities.

Le

x ---> number of scarves knitted per week

y ---> number of knitted sweaters per week

we know that

Mary would like to spend no more than 40 hours per week knitting

The word "No more" means "less than or equal to"

so

2x+10y\leq 40 ----> inequality A

Mary would like to knit at least 5 items per week

The word "at least" means "greater than or equal to"

x+y\geq 5 ----> inequality B

Solve the system by graphing

The solution is the triangular shaded area

see the attached figure

7 0
3 years ago
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