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cricket20 [7]
3 years ago
14

Hi please help me i will mark as brainiest just please help!

Mathematics
1 answer:
snow_lady [41]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Kahlil wants it to be more than 10 seconds long, and his friend wants it 5 seconds longer than that. So it has to be at least 10 + 5 seconds long or 15 seconds. B is the only option with >15, and all the possible track lengths below satisfy the inequality.

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A sphere has a volume of 288 Pi in^3. Find the surface area of the sphere
lorasvet [3.4K]

Answer:

Step-by-step explanation:

The formula for determining the volume of a sphere is expressed as

Volume = (4/3) × πr³

The volume of the given sphere is expressed as 288π inches³. It means that

(4/3) × πr³ = 288π

4r³/3 = 288

4r³ = 3 × 288 = 864

r³ = 864/4 = 216

Taking cube root of both sides, it becomes

r = 6

The formula for determining the surface area of a sphere is expressed as

Area = 4πr²

π = 3.14

Therefore,

Surface area = 4 × 3.14 × 6² = 452.16 inches²

7 0
3 years ago
Find the value of x. Round to the nearest tenth.
gizmo_the_mogwai [7]

Answer: 76.5

Step-by-step explanation:

Interior angles of a triangle = 180 degrees so then you do 180-27 to get 153. Then 153 divided by 2 = 76.5

5 0
3 years ago
Corinna has $88. She wants to buy a $275 plane ticket. She will save up her earnings from working at the museum where she earns
m_a_m_a [10]

Answer:

275 = 17x + 88 \\ - 88 = 17x - 88 \\ 187 = 17x \\ 187 \div 17 \\ x = 11 \: hours

8 0
3 years ago
A soccer team played 160 games and won 65 percent of them. How many games did it win ? Please show work
galben [10]
To find the percent of games the soccer team won, you would do 160 multiplied by 0.65, because if you were to convert the 65% into a decimal, you would get 0.65. Notice the key word, "of". This refers to multiplication. So when doing 160*0.65, you get 104 games won. Therefore the soccer team won 104 of their games.

Hope this helps! :D Feel free to ask more questions, or ask me questions about my explanation.
7 0
3 years ago
Read 2 more answers
A softball fits snuggly inside a cubical box that is 4 inches on each side. What is the volume of the softball that fits snuggly
Natali5045456 [20]

Answer:

33.5 cubic inches.

Step-by-step explanation:

If the softball fits perfectly inside the cubical box, the softball is a sphere with diameter of 4 inches (radius os 2 inches).

The volume of a sphere is given by:

V= \frac{4}{3}\pi r^3

For r = 2 inches:

V= \frac{4}{3}*3.14* 2^3\\V=33.5\ in^3

The volume of the softball is 33.5 cubic inches.

4 0
3 years ago
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