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xeze [42]
2 years ago
5

Solutions to this quadratic F(x) = x^2 + x - 2

Mathematics
1 answer:
dybincka [34]2 years ago
4 0

Answer:

x = -2 & x = 1

Step-by-step explanation:

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It’s A

Explanation / when you multiply 7 by -9 you get -63
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4. Kennedy buys a computer that was reduced in a sale by 10%. If the sale price of the
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N$12 576. 11

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6 0
3 years ago
How do you subtract 42 minutes from 1 hour ,25 minutes.explain what to do and why you do it?
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3 0
3 years ago
X-4y=7 -6x-3y=12 how do i solve by substitution​
Dafna1 [17]

Answer:

x = 15

y = 2

Step-by-step explanation:

X-4y=7 | ×6 |

-6x-3y=12 | ×1 |

6x - 24y = 42

-6x - 3y = 12

___________+

27y = 54

y = 54/27

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3 0
3 years ago
Simply please “picture”
oksian1 [2.3K]
<h3>Answer: (-infinity, 7]</h3>

=====================================

Explanation:

The first interval (-infinity, 3) describes any number less than 3, so we can write x < 3 in short hand (where x is the unknown number).

The second interval (-1, 7] means we start at -1 and stop at 7. We do not include -1 but include 7. So we say that -1 < x \le 7 (ie x is between -1 and 7; exclude -1, include 7)

If you were to graph each ona number line, you would see that the too intervals have overlapping parts. The right most edge extends out as far as x = 7. There is no left most edge as it goes onforever that direction.

Therefore, the to intervals combine to get x \le 7 which turns into the interval notation answer of (-infinity, 7]

-----------

It might help to think of it like this: x < 3 and -1 < x \le 7 say "x is some number that is less than 3, or it is between -1 and 7". So x could be anything less than 7, including 7 itself.

4 0
3 years ago
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