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Ganezh [65]
3 years ago
8

An equation is shown below:

Mathematics
1 answer:
gayaneshka [121]3 years ago
8 0
6(2x-11)+15=3x+12 Given
12x-66+15=3x+12 Distribution
12x-51=3x+12 Combine like terms
12x=3x+63 addition
9x=63 subtraction
x=7 division

the value of x that makes the equation true is 7.

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Select all of the following that are quadratic equations.
goldenfox [79]

Answer:

1. x² + 3x - 5 = 0

2. x² - x = 3 x + 7

4. 7x² + 14x = 0

Step-by-step explanation:

A Quadratic equation takes the form;

ax² + bx + c = 0

a, b, c are constants and a cannot be 0.

Options 1 fits this;

x² + 3x - 5 = 0

Option 2 fits this as well;

x² - x = 3 x + 7  

x² -x - 3x - 7 = 0

x² - 4x - 7 = 0

Option 4 fits this as well if c = 0.

7x² + 14x + 0 = 0

8 0
3 years ago
Barney made $50,000 last year. He increases amount by 8% this year how much does he make this year?
bekas [8.4K]

Answer:$54000

Step-by-step explanation:

8%of50000=4000

4000+50000=54000

3 0
3 years ago
Find the greatest common factor of the following monomials: 20a 46a^2 48a^6​
Ierofanga [76]
60a^5 is the answer to your question
6 0
3 years ago
Jared bought eighteen doughnuts to share with his coworkers. If each doughnut cost c cents, which expression represents his tota
Oduvanchick [21]
Wait, how many cents?
7 0
2 years ago
Need help plsss ASAP
Phantasy [73]

Answer: I would choose option "c"

Step-by-step explanation:

5 0
3 years ago
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