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3 years ago

What is 4 to the power of x minus 3 =18

1 answer:

mote1985 [20]3 years ago

7 0

3 to the power of 4:

=34
x
n
=
3
4

=3⋅3⋅3⋅3
=
3
⋅
3
⋅
3
⋅
3

=81
=
81

For example, 3 to the power of -4:

=3−4
x
n
=
3
−
4

=134
=
1
3
4

=13⋅3⋅3⋅3
=
1
3
⋅
3
⋅
3
⋅
3

=181
=
1
81

=0.012346

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Combine terms/simolify

-Dominant- [34]

Answer:

$\dfrac{2m -1}{5}$

Step-by-step explanation:

Since we have common denominators inside the parentheses, we can combine the denominators. Then, we get the following expression:

$2\huge\text{(}\dfrac{1}{5} m - \dfrac{2}{5} \huge\text{)} + \dfrac{3}{5}$

$2\huge\text{(}\dfrac{m - 2}{5} \huge\text{)} + \dfrac{3}{5}$

Now, we can multiply the expression inside the parentheses by 2.

$\huge\text{(}\dfrac{2m - 4}{5} \huge\text{)} + \dfrac{3}{5}$

Since the expression inside the parentheses cannot be simplified further, we can open the parentheses and simplify the expression.

$\dfrac{2m - 4}{5} + \dfrac{3}{5}$

We can combine the denominators as the denominators are the same.

$\dfrac{2m - 4 + 3}{5}$

Finally, we can simplify -4 + 3.

$\dfrac{2m -1}{5}$

Therefore, the simplified expression is (2m - 1)/5.

Learn more about combining like terms: brainly.com/question/13080103

5 0

1 year ago

Will mark brainliest

Lerok [7]

Answer:

Step-by-step explanation:

We know she gets 4 more quarters so: q+4

She gives away 3 dime so: d-3

And the nickels stay the same: n

In total the expression would be: q+4+d-3+n

Hope this helps :D

3 0

3 years ago

How long will it take to earn $252 in interest if $1200 is invested at 7% annual rate interest?

bogdanovich [222]

it takes 3 years.formula interest =PRT/100 so its 252 =1200 times 7 times T all over 100 then multiply by 100 both sides to get 25200=8400T devide by 8400 both sides to get 3

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3 years ago

The prefix octa-means what?

yuradex [85]

The prefix means 8.How to remember this is a octagon which has 8 sides.Therefore Octa means eight.I hope this helped.

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2 years ago

Read 2 more answers

PLEASE HELP- (-2, -7) (7, 2) (2, 7) (7, -2)

choli [55]

A=(7,3) b=(7,-2) c=(1,-2)

6 0

2 years ago