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Sonbull [250]
3 years ago
12

I'M GIVING 100 POINTS FOR THIS What is the ratio of a surface area to volume of a sphere with the following measurements? Surfac

e Area = 300m2 Volume = 500m3 A. 500m -1 B. 0.6m -1 C. 300m-1 D. 1.7m-1
Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

SA/V = 300m^2/500m^3 -------- m^2 cancel out and so d othe 100

we get 3/(5m)

Sooo, I guess that's equal to 3/5 1/m and 1/m is m^-1 so we have (B)

Setler79 [48]3 years ago
4 0

Answer: 500m^-1

Step-by-step explanation:

APEX

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Pls help with Trigonometric
Sav [38]

The value of the given trigonometry function is 2√15/15

<h3>Half angles</h3>

Half angles are trigonometric identities used to express sine, cosine and tangent of half angles.

For instance the value of cos theta is expressed as shown below;

cosФ = cos(Ф/2+Ф/2)

cosФ = cos²Ф/2-sin²Ф/2
cosФ = cos²Ф/2-(1-cos²Ф/2)
cosФ  = 1 - 2cos²Ф/2

Given the following parameters

cosФ = -7/15

Substitute

cosФ  = 1 - 2cos²Ф/2

-7/15  = 1 - 2cos²Ф/2

-2cos²Ф/2 = -7/15 - 1

-2cos²Ф/2 = -8/15

cos²Ф/2 = 4/15
cosФ/2 = 2/√15

Rationalize

2/√15 * √15/√15

2√15/15

Hence the value of the given trigonometry function is 2√15/15

Learn more on trigonometry function here: brainly.com/question/2254074

#SPJ1

8 0
1 year ago
Find the values of x and y.
babunello [35]

Answer:

x=21°. :Angles subtended by the same arc

y=42°. :180-(117+21),angles subtended by the same arc

8 0
3 years ago
What is the factorization of the expression below <br> x2-12x+36
Lera25 [3.4K]

Answer:

(x-6)^2

Step-by-step explanation:

3 0
3 years ago
Help me out here please.
Vilka [71]

Answer:

just remove the parentheses and add the numbers

Step-by-step explanation:

5 0
3 years ago
Please help with at least one question.
Cloud [144]
Okay, first off negative is well negative and since there is no other negatives, -5/7 is least (making it go first). Second, what is smaller 3/5 or 2/9, remember that the bigger the denominator the smaller the piece.

[/] [/] [/] [] [] = 3/5

[/] [/] [] [] [] [] [] [] [] 2/9

At the end it should be -5/7, 2/9 , 3/5. This method can go the same for problems like these...Hope it helps!
7 0
3 years ago
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