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3 years ago

1. is this a function 7 8 2 9 3 10

Mathematics

1 answer:

kow [346]3 years ago

7 0

I need a lil more information

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This is really confusing me:<br> Simplify so that your answers contain only positive exponents.

xxTIMURxx [149]

Answer:

see below

Step-by-step explanation:

For simplifying expressions of this sort, there are four rules of exponents that come into play;

$a^ba^c=a^{b+c}\\\\(ab)^c=a^cb^c\\\\(a^b)^c=a^{bc}\\\\\dfrac{1}{a^b}=a^{-b}\ \quad\text{which means}\quad a^b=\dfrac{1}{a^{-b}}$

I find it convenient to eliminate the fractions by adding the exponents, then rewrite any negative exponents as denominator factors.

$23. \quad\dfrac{1}{x^{-2}}=x^2\\\\24. \quad\dfrac{mn}{m^2n^3}=m^{1-2}n^{1-3}=m^{-1}n^{-2}=\dfrac{1}{mn^2}\\\\25. \quad\dfrac{k^{-2}}{k^{-3}}=k^{-2-(-3)}=k\\\\26. \quad\left(\dfrac{m^2}{n^3}\right)^3=\dfrac{m^{2\cdot 3}}{n^{3\cdot 3}}=\dfrac{m^6}{n^9}\\\\27. \quad\dfrac{x^2y^3z^4}{x^{-3}y^{-4}z^{-5}}=x^{2-(-3)}y^{3-(-4)}z^{4-(-5)}=x^5y^7z^9$

3 0

3 years ago

Find the area of a circle with radius, r = 1cm. Give your answer in terms of π .

natulia [17]

Answer:

A = 1cm*pi

Step-by-step explanation:

5 0

3 years ago

If a= 35 then find b

KengaRu [80]

9514 1404 393

Answer:

Step-by-step explanation:

All of the marked angles subtend the same arc, so all have the same measure.

a = b = c = d = 35

b = 35

8 0

3 years ago

Which choice shows the students listed in order from who has the least amount of money to who has the greatest amount of money

exis [7]

Step-by-step explanation:

Should be Emily, Morgan, Kali, Rosa

6 0

3 years ago

39,012 in expanded form

Helen [10]

30,000 + 9,000 + 10 + 2

6 0

3 years ago

1. is this a function 7 8 2 9 3 10​

1. is this a function 7 8 2 9 3 10