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2 years ago

Pls answer any that you can!!!

Mathematics

1 answer:

klio [65]2 years ago

6 0

Answer:

12, 45, 1.8, -9, 18

Step-by-step explanation:

up up down down left right left right b a start

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X^4-28x^2=0 solve algebraically

Paha777 [63]

$x^4 - 28x^2 = 0$

$x^2(x^2 - 28) = 0$

$x^2 = 0 \ \ or \ \ (x^2 - 28) = 0$

$x = 0 \ \ or \ \ x^2 = 28$

$x = 0 \ \ or \ \ x = \pm \sqrt{28}$

$x = 0 \ \ or \ \ x = \pm2 \sqrt{7}$

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Answer : x = 0 or 2√7 or -2√7
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3 years ago

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IrinaVladis [17]

76% of 150 would be 114 I think I’m not to sure tho

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2 years ago

10 km, 7 km, 13 km<br> Is the triangle acute, right, or obtuse

LiRa [457]

Answer:

The triangle is acute.

Step-by-step explanation:

This is because each side is less than 90 degrees which would make the angles acute which would make the whole triangle acute.

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3 years ago

A model is an estimate or approximation of a data set. In the real world, there are too many variables to know exactly what will

Ivan

Answer:

A model is an estimate of a data set.

A useful model can be used to make predictions.

Step-by-step explanation:

There are various models used in mathematics which are used to predict variables. The regression model is used to predict the relation between two variables. There are various other models which help to predict the future events and outcome of these events.

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2 years ago

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lutik1710 [3]

Answer:

Step-by-step explanation:

If they have no solutions, the lines must not intersect.

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2 years ago

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