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vekshin1
3 years ago
15

Can you help with 3 and 4

Mathematics
1 answer:
Aliun [14]3 years ago
5 0

1. 7, you have to divide 10,885 by 1,555 and you get 7.

2. The equation that was given, 23+7 x 35 =  268

The way you get 268 is by multiplying first, so 7 x 35 = 245 then you have to add 23 to get 268.

I hope this helps you


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Answer:

You selected the correct answer: {x | x <<em> </em>-4 or x > 2}

Step-by-step explanation:

5(x - 2)(x + 4) > 0

Use FOIL method to expand (x - 2)(x + 4):

5(x^{2} + 2x - 8) > 0

Distribute 5 into (x^{2} + 2x - 8)

5x^{2} + 10x - 40 > 0

Divide all terms by 5 from both sides of the inequality:

\frac{5x^{2}}{5}  + \frac{10x}{5}  - \frac{40}{5} > \frac{0}{5}

x^{2} + 2x - 8 > 0

Factor the trinomial:

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Therefore, the solution set to the inequality is {x | x < -4 or x > 2}

<em>Interval notation:  </em>(-∞, -4) ∪ (2, ∞)

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3 years ago
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