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Mrrafil [7]
3 years ago
15

Evaluate-2w^2 +5 for w=4

Mathematics
2 answers:
Aneli [31]3 years ago
8 0

Answer:

-27

Step-by-step explanation:

Substituting 4 for w in the expression -2w² + 5 yields:

  -2(4)² + 5

= -2(16) + 5

= -32 + 5

= -27

AveGali [126]3 years ago
4 0

-27 should be your answer. Here is my work...

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Kimmi and her mom count 254 guests coming to the wedding. There are 9 tables at the wedding. How many guests sit at each table?
valkas [14]

Answer:

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Step-by-step explanation:

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6 0
2 years ago
Which expression is equivalent to (-4y-x)-(y-9x) ?
777dan777 [17]

Answer:

-5y + 8x

Step-by-step explanation:

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7 0
3 years ago
If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation PLEASE ANSWER THUS PLEASE
exis [7]

Answer:

(-9,16]

Step-by-step explanation:

we know that

The domain of x is equal to the interval--------> (-2,3]

-2< x \leq 3

All real numbers greater than -2 and less than or equal to 3

Let

y=5x+1

For x=3

y=5x+1\\y=5(3)+1=16

For x>-2

y >5(-2)+1\\y > -9

so

The range of the function is the interval--------> (-9,16]

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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