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kupik [55]
3 years ago
14

Evaluate if x = -4 and y = 13 3(2x -y)

Mathematics
1 answer:
Delicious77 [7]3 years ago
7 0

3(2(-4)-13)

3(-8-13)

3(-21)

-63


The answer is -63

Hope this helps!

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Each side of a pentagon is 10 cm greater than the previous side. If the perimeter of this pentagon is 500 cm, find the lengths o
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Answer: See explanation

Step-by-step explanation:

The perimeter of a pentagon is gotten through the summation of its five sides. Let the first side be represented by x. Since each side of a pentagon is 10 cm greater than the previous side, then the sides will be:

First side = x

Second side = x + 10

Third side = x + 10 + 10 = x + 20

Forth side = x + 30

Fifty side = x + 40

Therefore,

x + (x + 10) + (x + 20) + (x + 30) + (x + 40) = 500

5x + 100 = 500

5x = 500 - 100

5x = 400

x = 400/5

x = 80

Therefore, the lengths will be:

First side = x = 80cm

Second side = x + 10 = 80 + 10 = 90cm

Third side = x + 20 = 80 + 20 = 100cm

Forth side = x + 30 = 80 + 30 = 110cm

Fifty side = x + 40 = 80 + 40 = 120cm

8 0
3 years ago
What is the range and domain of this question? im unsure​
Naya [18.7K]

Answer:

Step-by-step explanation:

Domain is the independent variable (x)

Range is the dependent variable (y)

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Answer:

Correct Answer is B

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y-4=6

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3 years ago
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