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denis-greek [22]
3 years ago
10

If a + b + c = 1, ab + bc + ca = -1 and abc = -1. find the value of a³+b³+c³​

Mathematics
1 answer:
DIA [1.3K]3 years ago
4 0

Answer:

1

Step-by-step explanation:

→ If we know that 3 numbers need to multiply to make -1, it must be

1, 1 and -1

→ Then we just substitute this into a³ + b³ + c³

1³ + 1³ + (-1)³ = 2 - 1 = 1

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2. Is 4x – 3 = 19 true, false, or open? <br> A)true<br> B)false<br> C)open
ElenaW [278]

Answer: B. False

Step-by-step explanation: Because you do

4x - 3 = 19

+3 +3 =4x = 22

You divide 4x divide by 4 and you get x

Then you divide 22 by 4 and get 5.5

So the answer is X = 5.5

6 0
3 years ago
I really need help with this please help me this is to turn in just one and a half hours please please help me please
alukav5142 [94]

If you post the work, then we might be able to help

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3 years ago
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GuDViN [60]
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5 0
3 years ago
An experimenter studies vision in low light by
Mariulka [41]

Answer:

Independent variable- time spent in the dark room

Dependent variable - number of objects correctly identified

Conditions of the experiment- low light environment and lighted environments

Scores from the independent variable are used to construct the frequency distribution

Step-by-step explanation:

The independent variable is the factor that is being manipulated in an experiment and this time it is the time spent in a darkened room.

The dependent variable is the response variable, in this case, the number of objects correctly identified.

The experimental conditions involved bringing people from a lighted area into a darkened room.

3 0
3 years ago
Select the correct answer
jeka57 [31]
OB would be correct
6 0
3 years ago
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