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3 years ago

Simplify: (−5)^5/(−5)^−6 Please also explain your answer. Thanks!

Mathematics

2 answers:

Afina-wow [57]3 years ago

4 0

Answer:

-5^11

Step-by-step explanation:

madam [21]3 years ago

4 0

Answer:

The answer is (-5)^11.

Step-by-step explanation:

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Nookie1986 [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

Plz help asap real quick i will put you as brainlist

professor190 [17]

Answer:

21/8*2= 5 2/8 or 5 1/4

Step-by-step explanation:

Divide fraction so keep change flip

make them improper

21/8 * 2

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3 0

3 years ago

Read 2 more answers

Which is the first step needed to solve by substitution?

fredd [130]

$\begin{gathered} -x+y=-1 \\ 2x-y=3 \end{gathered}$

To solve the given system of equations for substitution you:

1. Solve in one of the equations a variable.

For the given options the one that is correct is solve the first equation for y, by adding x to both sides:

$\begin{gathered} -x+x+y=-1+x \\ y=-1+x \end{gathered}$

4 0

2 years ago

Find the explicit formula for the geometric sequence cn given below. Note that c1=6.

kodGreya [7K]

The explicit formula for the geometric sequence $c_{n}$ is

$c_{n}=6(\frac{-1}{3})^{n-1}$

Step-by-step explanation:

The formula of the nth term of a geometric sequence is

$a_{n}=a(r)^{n-1}$ , where:

a is the first term of the sequence
r is the common ratio between the consecutive terms

The geometric sequence of $c_{n}$ is 6 , -2 , $\frac{2}{3}$ , $\frac{-2}{9}$ , $\frac{2}{27}$

∵ $c_{1}$ = 6

∵ $r=\frac{c_{2}}{c_{1}}$

∵ $c_{2}$ = -2

∴ $r=\frac{-2}{6}$

- Divide both term by 2 to simplify it

∴ $r=\frac{-1}{3}$

∵ $c_{n}=c_{1}(r)^{n-1}$

- Substitute the value of $c_{1}$ and r in the rule above

∴ $c_{n}=6(\frac{-1}{3})^{n-1}$

The explicit formula for the geometric sequence $c_{n}$ is

$c_{n}=6(\frac{-1}{3})^{n-1}$

Learn more:

You can learn more about the geometric sequence in brainly.com/question/1522572

#LearnwithBrainly

6 0

3 years ago

3k^2+12k-7kn-28n square meters and a length of 3k-7n meters.

melomori [17]

Step-by-step explanation:

here ! I used the formula area = length × width

and just some algrbric expressions solving

4 0

2 years ago