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jekas [21]
2 years ago
13

Evaluate -2x^2-4x+3 when x=-2

Mathematics
1 answer:
Misha Larkins [42]2 years ago
8 0

Answer:

  3

Step-by-step explanation:

A polynomial is sometimes easier to evaluate if it is first written in Horner form:

  -2x^2 -4x +3 = (-2x -4)x +3

For x = -2, this is ...

  (-2(-2) -4)(-2) +3 = 0(-2) +3 = 3

The value is 3 when x = -2.

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Write an expression to represent:<br> Eight more than the product of two and a number <br> x<br> xx.
gizmo_the_mogwai [7]

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Step-by-step explanation:

7 0
3 years ago
there are two boxes. in the first box there are 7 cards numbered from 1 tp 7 the second box also contains 7 cards from 1-7 pick
mrs_skeptik [129]

Answer:

\frac{6}{49}

Step-by-step explanation:

GIVEN: There are two boxes. in the first box there are 7 cards numbered from 1 to 7 the second box also contains 7 cards from 1-7 pick one card from each box.

TO FIND: probability that the sum of the two two cards is at least 12.

SOLUTION:

sample case such that sum of cards is 12 : (5,7),(7,5),(6,6)

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sample case such that sum of cards is 14 : (7,7)

Total sample case such that sum is atleast 12 =6

Total sample cases=49

probability that the sum of the two two cards is at least 12=\frac{\text{sample case in which sum is atleast 12}}{\text{total sample cases}}

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probability that the sum of the two two cards is at least 12 is \frac{6}{49}

8 0
3 years ago
5000 milliliters equals
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Answer:

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Read 2 more answers
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