All categories

2 years ago

Find the missing exponent. Set up an equation and solve. : x^4·x^n = x^5

1 answer:

7 0

$Use\ a^n\cdot a^m=a^{n+m}\\\\x^4\cdot x^n=x^5\\\\x^{4+n}=x^5\iff4+n=5\ \ \ |subtract\ 4\ from\ both\ sides\\\\\boxed{n=1}$

You might be interested in

Please help me out with this one

Kruka [31]

Answer:

-2

Step-by-step explanation:

Rise/run

6 0

2 years ago

PLEASE HELP AND EXPLAIN REWARDING A LOT

tresset_1 [31]

Answer:

this is a question.

Step-by-step explanation:

5 0

2 years ago

100 points+Brainliest for correct answer

goblinko [34]

Answer:

The electron moved down to an energy level and has an energy of

$10.92 \times 10^{-19} \textsf{J}$

Step-by-step explanation:

$\textsf{initial energy level of electron}= 16.32 \times 10^{-19} \textsf{J}$

$\triangle E =\textsf{energy released}= 5.4 \times 10^{-19} \textsf{J}$

A positive energy change means that the electron absorbs energy, while a negative energy change implies a release of energy from the electron.

Therefore, when an electron absorbs energy, the electron moves up to higher energy levels, and when an electron releases energy, it moves to lower energy levels.

$\triangle E=E_2-E_1$

$\implies 5.4 \times 10^{-19} = 16.32 \times 10^{-19} -E_1$

$\implies E_1= 16.32 \times 10^{-19} -5.4 \times 10^{-19}$

$\implies E_1= 10.92 \times 10^{-19}$

<u>Answer</u>:

The electron moved down to an energy level and has an energy of

$10.92 \times 10^{-19} \textsf{J}$

6 0

1 year ago

MakcuM [25]

Answer: C) 4.20

Explanation:

Multiply each value with its corresponding frequency:

1*450 = 450
10*35 = 350
50*10 = 500
100*4 = 400
400*1 = 400

Add up the products

450+350+500+400+400 = 2100

Then divide this over the total frequency (450+35+10+4+1 = 500)

So we get 2100/500 = 4.20 as the expected value.

4 0

2 years ago

Which system of inequalities has no solution?

Luda [366]

Answer:

i think c

Step-by-step explanation:

4 0

2 years ago