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rodikova [14]
3 years ago
10

(30 POINTS) PLZ HELP THIS IS IMPORTANT

Mathematics
2 answers:
telo118 [61]3 years ago
4 0

Answer:

x 1 2 5 7


y 5 10 25 35


Step-by-step explanation:

The y values are the x values times 5

Please rate <u>Brainliest</u> (:

Vika [28.1K]3 years ago
3 0

Answer:

x 1 2 5 7

y 5 10 25 35

Step-by-step explanation:

The y values are all just the x values times 5

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This question is an example of a quadratic equation. To work this out you may first need a calculator. The first step is to substitute the values of a,b and c into the formula.  So once substituted the formula of \frac{-b+-\sqrt{b^2-4ac} }{2a} becomes \frac{(-12)+-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}. Although when written in a calculator there will not be a plus and minus button and so you would have to do this separately.

However when substituting the values it would be best practice to put them in brackets.

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\frac{(-12)+\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}=\frac{-2+2\sqrt{7} }{3} /1.097167541

2) Substitute the values into the equation for -.

\frac{(-12)-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}=\frac{-2+2\sqrt{7} }{3} /-2.430500874

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