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3 years ago

-2.5(4x-3) Write as an Equivalent Expression.

Mathematics

1 answer:

V125BC [204]3 years ago

7 0

The answer to the question

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20 pts look at pic n answer

kodGreya [7K]

1. $\frac{x^3}{x^8}=x^{-5}$

2. $\frac{6x}{2x^8} = 3x^{-7}$

3. $\frac{28x^6}{21x^2} = \frac{4}{3}x^4$

Step-by-step explanation:

1. x^3/x^8

Given fraction is:

$\frac{x^3}{x^8}$

When the bases are same in both numerator and denominator then the exponents can be added

i.e.

$\frac{x^a}{x^b} = x^{a-b}$

So,

$\frac{x^3}{x^8} = x^{3-8} = x^{-5}$

Part b:

$\frac{6x}{2x^8}\\= \frac{3.2.x}{2.x^8}\\=\frac{3x}{x^8}\\=3x{1-8}\\=3x^{-7}$

Part c:

Given

$\frac{28x^6}{21x^2}\\= \frac{7.4.x^6}{7.3.x^2}\\=\frac{4}{3} x^{6-2}\\=\frac{4}{3}x^4$

Keywords: Fractions, exponents

Learn more about fractions at:

#LearnwithBrainly

3 0

3 years ago

Need help on these three. thanks:))

Anton [14]

1. 0.3% or 30%
2. 15 minutes
3. 48 times

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4 years ago

Convert 27 cubits to fathoms

topjm [15]

27 cubits =
6.75 fathoms

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4 years ago

Find the mode of the following data Stem: 2,3,4,5 Leaves: 8,1,1,6,0,2,4,3,5

Fittoniya [83]

One 1 because it has occured twice in the question.

7 0

3 years ago

Hank is throwing a party. The party costs $20 per person. Answer the questions below to describe the relationship between the co

LenKa [72]

Answer:

The independent variable is (f) Number of friends. The dependent variable is (c) Cost of party.

The equation is c = 20f or the cost for 50 friends is c = 20(50) = 1000. It costs $1000.

Step-by-step explanation:

On a graph called the coordinate plane, there are two axis. The horizontal axis is the x-axis and is known as the independent variable. A great example of an independent variable is time. Time is always represented on the x-axis because time passes by. It does not depend on anything.

The other axis is the y-axis. It is the vertical axis on the graph. It is called the dependent variable because its value depends on x. For example, if you were looking at miles per hour, the number of miles would depend on how many hours you traveled. You have to know the time to find miles. This is a dependent variable.

Here the independent variable is the number of people. The dependent variable is the cost of the party because the amount of money depends on how many people come.

The equation is c = 20f or the cost for 50 friends is c = 20(50) = 1000. It costs $1000.

4 0

4 years ago

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