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hjlf
3 years ago
13

Find the length of the diameter of a sphere with a surface area of 24.63 miles2.

Mathematics
1 answer:
RSB [31]3 years ago
8 0

Answer:

2.8 miles.

True.

Step-by-step explanation:

Surface area = 4π r^2  (where r = the radius of the sphere)

24.63 = 4 π  r^2

r^2 = 24.63 / 4π

r =  √ ( 24.63 / 4π )

=  1.4 miles.

So the diameter = 2*1.4 = 2.8 miles (answer).

The answer to the second part of the question is true.

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Answer:

Where is the slope

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
1. how much do national football league (nfl) players weigh, on average? in a random sample of 50 nfl players, the average weigh
Solnce55 [7]

The average weight of a random sample of 50 NFL players is 244.4 pounds.

<h3>What is an equation?</h3>

An equation shows the relationship between two or more numbers and variables.

For a samples size (n) in normally distributed population, the sample mean is normally distributed, with mean μX=μ and standard deviation σX=σ/√n.

Hence for a sample of 50 NFL players with an average weight of 244.4 pounds:

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4 0
1 year ago
Given 3x^2+x-4/x-1 what are the domain and range
Katarina [22]

Answer:

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  • range: y ≠ 7

Step-by-step explanation:

The domain is the horizontal extent of the graph, the set of x-values for which the function is defined. The range is the vertical extent of the graph, the set of y-values defined by the function.

<h3>Simplified</h3>

The given function is undefined where its denominator is zero, at x=1. Everywhere else, it can be simplified to ...

  \dfrac{3x^2+x-4}{x-1}=\dfrac{(x-1)(3x+4)}{(x-1)}=3x+4\quad x\ne 1

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The simplified function (3x+4) is defined for all values of x except x=1. The simplest description is ...

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In interval notation, this is ...

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<h3>Range</h3>

The simplified function is capable of producing all values of y except the one corresponding to x=1: 3(1)+4 = 7. The simplest description is ...

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In interval notation, this is ...

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6 0
2 years ago
the ratio of adults to children is 7:3. based on this ration, if there was 370 people how many where children
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6 0
3 years ago
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