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Ulleksa [173]
3 years ago
12

How do I do this I don't understand

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
4 0
It's a ball, so a sphere.
V=4/3πr^3(That's the sphere formula)
V=128.
128=4/3πr^3
3.13 is your approximate radius.
r= (3* 128/4π)
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What is the ratio of the number of sides of a quadrilateral to the number of sides of a pentagon?
IgorC [24]
4:5 because a quadrilateral has 4 sides and a pentagon has 5 sides
3 0
3 years ago
Select which form to use when you know the slope of the line and one of the points on the line. a. horizontal line c. slope-inte
Cloud [144]

The form which should be used when you know the slope of a line and one of the points on the line is: d. point-slope form.

<h3>What is the point-slope form?</h3>

The point-slope form can be defined as an equation which is used when the slope of a line and one of the points on this line is known.

Mathematically, the point-slope form of a line is given by:

y - y₁ = m(x - x₁)

<u>Where:</u>

  • m is the slope.
  • x and y are the points.

In conclusion, you should use the point-slope form when you know the slope of a line and one of the points on the line is given.

Read more on point-slope form here: brainly.com/question/24907633

#SPJ1

6 0
2 years ago
Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared.
Tatiana [17]

Answer:

Take the coefficient of ''n'', divide it by 2, and raise it to the second power;

n^2+n+(\frac{1}{2})^2

n^2+n+\frac{1}{4}=0

=(n+\frac{1}{2} )^2

8 0
3 years ago
Jim is a furniture salesman. his weekly pay is $300 plus3.5% of his total sales for the week.jim sell x dollar's worth of furnit
Lesechka [4]
For this case, the first thing we must do is define a variable.
 We have then:
 x: total sales for the week
 We now write the equation that models the problem.
 We have then:
 p (x) = 0.035x + 300
 Answer:
 a function, p (x), which can be used to determine his pay for the week is:
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5 0
3 years ago
Which pair of lines are parallel? Select all that apply
sattari [20]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cut-off point with the y axis

By definition, if two lines are parallel then their slopes are equal.

Option A:

y = -2x + 3\\y = 2x-3

The slopes are not the same.

Option B:

y = 2x-1\\y = 2x + 8

The slopes are the same so the lines are parallel.

Option C:

y = 4x + 6\\y = -4x-6

The slopes are not the same.

Option D:

y = -3x + 1\\y = -4x + x-1 = -3x-1

The slopes are the same so the lines are parallel.

Answer:

The parallel lines are: Option B and Option D

3 0
3 years ago
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