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g100num [7]
3 years ago
7

"Four times the difference of -16 and 7 amounts to -92 " written as an equation is

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
7 0
You put the -16 - 7 in parenthesis and then the 4 infront of that. So the equation will look like 4(-16 - 7) = -92
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Solve each quadratic equation. Show your work. 14. (2x – 1)(x + 7) = 0 15. x2 + 3x = 10 16. 4x2 = 100
andreyandreev [35.5K]
14.  (2x - 1)(x + 7) = 0

Using the zero factor property, we know that either the first or second terms (or both) must be equal to 0 if their product is 0.  We can set each term equal to 0 to find the solutions:

2x - 1 = 0
2x = 1
x = 1/2

x + 7 = 0
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15.  x^{2} +3x=10

To solve this equation, you first need to set it equal to 0:

x^{2} +3x=10 \\ x^{2} +3x-10 = 0

Next, it can be factored:

x^{2} +3x-10 = 0 \\ (x+5)(x-2)=0

Finally, we can solve just like we did above:

x + 5 = 0
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First, you can simplify by dividing each side by 4:

4x^2=100 \\ x^2=25

Now, set the equation equal to 0:

x^2=25 \\ x^2-25=0

Next, factor:

x^2-25=0 \\ (x+5)(x-5)=0

Finally, find the solutions:

x + 5 = 0
x = -5

x - 5 = 0
x = 5
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3 years ago
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I believe the awnser is A
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andre [41]
(2/7)% = 

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3 years ago
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neonofarm [45]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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