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valkas [14]
3 years ago
12

A credit card balance is $452.18. Find the new balance after these things happen: two items costing $26.45 and $15.90 are return

ed; three items costing $3.17, $16.42 and $57.71 are purchased; and a payment of $100 is made.
Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
8 0

Answer:

the anwser is 232.33

Step-by-step explanation:

i added all of the things that happened and then toke that number and subtracted that from the main number.

hope this helps

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5x^2+11x=0 quadratic equation
hammer [34]
5x^{2} + 11x = 0

5x^{2} + 11x + 0 = 0
x = \frac{-(11) +/- \sqrt{(11)^{2} - 4(5)(0)}}{2(5)}

x = \frac{-11 +/- \sqrt{121 - 0}}{10}

x = \frac{-11 +/- \sqrt{121}}{10}

x = \frac{-11 +/- 11}{10}

x = \frac{11 + 11}{10}         x = \frac{11 - 11}{10}

x = \frac{22}{10}               x = \frac{0}{10}

x = 2.2              x = 0
3 0
3 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
2 years ago
To ensure that the horizontal segments are parallel, x must equal
andrezito [222]

Answer:

53

Step-by-step explanation:

Because its 53.

6 0
3 years ago
Please help me do this one complicated and confused
IrinaK [193]

Answer:

9

Step-by-step explanation:

Area of a triangle=(base*height)/2

1) Input the values

54=(12h)/2

2) Multiply both sides by 2

54*2=(12h/2)2

108=12h

3) Divide both sides by 12

108/12=12h/12

9=h

I hope this helps! Please comment if you have any questions.

3 0
3 years ago
Read 2 more answers
Please help me... there will be 7 more questions where that came from
Aleksandr [31]
168 students because 28% of 600 is 168.
6 0
2 years ago
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