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zlopas [31]
3 years ago
14

The volume V of a sphere with radius R is given by formula V=4/3 x 3.14 x r^3

Mathematics
1 answer:
Olin [163]3 years ago
5 0
36(3.14) = 4/3 x 3.14 x r^3
113.04 = 4.187(r^3)
113.04/4.187 = r^3
26.997 = r^3
3√26.997 = r
r = ~3

Check: 3^3(\pi)(4/3) = 27(3.14)(4/3) = 113.04
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Demonstrates the commutative property across multiplication for 2 × 10 × 7
Vedmedyk [2.9K]
Commutative means that you can mix up the numbers, but still have the right answer.

2 x 10 x 7 =
2 x 7 x 10 =
10 x 2 x 7 = 
10 x 7 x 2 =
7 x 2 x 10 = 
7 x 10 x 2 

Hope this helps :)

3 0
3 years ago
What is the length of ST, to the nearest tenth of a yard?
rewona [7]
Let's say that ST is side b
<span><span>Use the Law of Sines to find side b.</span><span> 
   b / sin(B) = a / sin(A)</span><span> 
b / sin(59°) = 7 / sin(79°)</span><span> 
                b = (sin(59°) x 7) / sin(79°)</span><span> 
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That is answer B.) 6.1 yards

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3 0
3 years ago
Read 2 more answers
I will give 26 points for this!!!!
n200080 [17]

Answer:

37.5%

Step-by-step explanation:

3 0
3 years ago
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Find the sum (3/7m-3+4n)+(2/7m-2m+6)
aleksley [76]

Answer:

(5/7)m + 2n + 3

Step-by-step explanation:

Rewrite 3/7m as (3/7)m for added clarity, also 2/7m as (2/7)m.

Adding (3/7)m and (2/7)m results in (5/7)m.

Next, combine -3 and 6, which yields 3.

I expected that there'd be only one term in m in both quantities.  (3/7)m - 3 + 4n does have only one term, but (2/7)m - 2m + 6) seems to have two m terms.  I will assume that you actually meant (2/7)m - 2n + 6).

Combining like terms, we get (5/7)m + 3 + 4n - 2n, or

(5/7)m + 2n + 3

4 0
3 years ago
Which of the following represents y &gt; 2x - 3?
Oksanka [162]

Answer: Choice A

The two characteristics here are:

  1. The boundary line is a dashed line. This visually indicates to the reader "points on the boundary do NOT count as solutions". Think of the boundary as an electric fence you cannot touch, but can get closer and closer to. We aren't including boundary points directly because of the lack of "or equal to".
  2. The shading is above the boundary, due to the "greater than" sign. This only works if we have y isolated.

The graph of choice B is y \le 2x-3 since we have a solid line and shading below the solid line. This time points on the boundary are part of the solution set.

7 0
1 year ago
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