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Kaylis [27]
3 years ago
7

Please help thanks so much

Mathematics
1 answer:
Umnica [9.8K]3 years ago
5 0
The formula for the volume of a sphere is the following:

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

Plug in V=5000π and solve for the radius.

5000 \pi = \dfrac{4}{3} \pi r^3

Divide both sides by \pi

5000 = \dfrac{4}{3} r^3

Multiply both sides by 3/4 (to eliminate the 4/3 on the right side)
Also, flip the equation so we have the unknown variable on the left side (math etiquette).

r^3=3750

Take the cube root of both sides

r \approx 15.5

Now, calculate the surface area since now we know the radius.
The formula for the surface area is the following:

S=4 \pi r^2

Plug in r=15.5

S \approx 3033

The second choice is your answer.
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~khan academy 7th grade
pickupchik [31]

Question:

Which of the following expressions represents the distance between 1.7 and −1/2 on a number line?

Choose 1 answer: 

A.\ |1.7 - 1/2|

B.\ |1.7 -(-1/2)|

C. None of the above

Answer:

B.\ |1.7 -(-1/2)|

Step-by-step explanation:

Given

Numbers: 1.7 and -1/2

Required

Determine the distance

To calculate the distance, we start by calculating the difference between the given numbers;

Difference = 1.7 - (-1/2)

Then, we calculate the distance;

<em>In this case, the distance is meant to be positive; So, we'll introduce the symbol for absolute value;</em>

Hence,

Distance = |Difference|

Substitute 1.7 - (-1/2) for Difference;

Distance = |1.7 - (-1/2)|

<em>Hence, the correct option is B</em>

4 0
3 years ago
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natita [175]
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2 years ago
Given directed line segment PR, find the coordinates of Q on PR such that the ratio of PQ to QR is 2:1.
Alekssandra [29.7K]

Answer:

4/3, -3

Step-by-step explanation:

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One equation in a linear system of two equations is 3x - 2y = 8. the system has an infinite number of solutions. which could be
kumpel [21]

The equation 3x - 2y = 8 and 6x - 4y = 16 are systems of equations with infinite solutions.

A linear system of equations can have (a)unique solutions, (b) infinite number of solutions, or (c) no solution.

For it to have infinite number of solutions, the graph of the equations must intercept with each other at infinite points, leaving the two graphs overlaying each other.

Given the equation, 3x - 2y = 8, the other equation in a linear system to have infinite number of solutions with it must be the exact same line.

To do this, simply multiply the whole equation with a real number.

Example:

Multiplying the whole equation by 2 gives 6x - 4y = 16.

Now, 3x - 2y = 8 and 6x - 4y = 16 are equations in a linear system with infinite number of solutions.

If you want to know more about systems of equations with infinite solutions, visit brainly.com/question/27927692.

#SPJ4

8 0
2 years ago
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