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crimeas [40]
3 years ago
15

Solve the inequality and express your answer in interval notation. x^2+8x+3<0

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
3 0
X² + 8x + 3 < 0

use the quadratic formula;

x = -8 + 2√13 / 2, -8 - 2√13 / 2

-4 - √13 < x < -4 + √13  (this is what they're asking as in interval notation)

hope this helps, God bless!

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1. Which represents the type of sequence: -99, -96, -92, -87, -81, …?
Juli2301 [7.4K]
So here are the answers for the given questions above:
1. Based on the given values above, the correct answer would be option B. NEITHER ARITHMETIC NOR GEOMETRIC. Why? When we say arithmetic sequence, the values should have a common difference which remains constant all throughout the sequence, and this sequence does not qualify. On the other hand, a geometric sequence should have a common ratio, and these numbers do not have one.
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8 0
3 years ago
I am stuck, please help
ASHA 777 [7]

Answer:

2323

Step-by-step explanation:

Mental math means to find a way to do this problem in your head without using paper, pencil or a calculator.

The question says there are 23 classes and each class is to collect 101 items.

The equation would be 23 x 101.

To do this in your head real quick, make the numbers easier to multiply.

Make the 101 items 100.  That means you are telling each class to collect 1 less item or 23 less items total.

You can do this in your head real quick.  23 classes collecting 100 items is 2300 items.

You had each class collect 100 items instead of 101.  That mean you didn't collect 23 items.   So if you add those back in, you will get

2323 items.

3 0
3 years ago
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