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Mrrafil [7]
4 years ago
15

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

Mathematics
2 answers:
Aneli [31]4 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]4 years ago
4 0

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

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This is geometry please help
EastWind [94]

Answer:

x = 31°

Step-by-step explanation:

\triangle ABC \cong \triangle DCE... (given) \\\\\therefore m\angle B = m\angle E..(cact)\\\\\because m\angle B = 61\degree \\\\\therefore m\angle E = 61\degree \\\\In \: \triangle DCE\\\\m\angle D+ m\angle C + m\angle E = 180\degree \\(by \:  interior \:  angle  \: sum \:  property \:  of \:  a triangle) \\\\2x\degree + 57\degree + 61\degree= 180\degree \\\\2x\degree + 118\degree = 180\degree \\\\2x\degree = 180\degree - 118\degree  \\\\2x\degree = 62\degree  \\\\x = \frac{62\degree}{2} \\\\x = 31\degree

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3 years ago
Chanel is going to paint a chervron design on her wall using the template. She will need to paint 50 of the templates. How many
sashaice [31]

Answer:

350 in²

Step-by-step explanation:

Assuming the solid likes are the design. So we see two parallelograms there.

Area of 1 parallelogram = base x height. Since we have a joint height, we will multiply the total height with the base (both have the same base length) to get the area of 1 design.

1 design = 3.5 x 2 = 7 in²

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8 0
3 years ago
Relationship between the values of 44000
I am Lyosha [343]
The 4 is in the ten thousands place, and the thousands place

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4 0
4 years ago
PLEASE HELP! Oscar and Kim have $22.00 each to spend at a book fair, where all students receive a 30% discount. They both want t
babymother [125]

Answer:

Both of them correct.

$21.945

They have enough money to purchase the book

Step-by-step explanation:

Oscar takes 30% of the normal price and subtracts it from the normal price. Out of 100% price he takes 30% so the result is: 100-30%= 70% of the normal price. Oscar's first step has the same result as Kim.

Oscar takes 10% of the discounted price (70%) and adds it back. The price will become 70% + 10%*70%= 77% of original price. Kim multiplies the discounted price with 110%, so the price will be: 70% * 110%= 77%. Both also give the same result.

The final price is 77% of the original, it will be: $28.50* 77%= $21.945

Both of them can buy the book

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4 years ago
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Dmitrij [34]
9 Is −4x3 and 10 is −5a2
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3 years ago
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