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ZanzabumX [31]
2 years ago
8

I really need help, I haven't been to school In a while and I kinda forgot what to do. So If anyone is kind enough, please help

me with this problem, it's the only problem I don't get other than the rest I did already

Mathematics
1 answer:
marissa [1.9K]2 years ago
3 0

Answer:

P = 20x + 6y + 10

Step-by-step explanation:

The perimeter (P) of the figure is the sum of the sides , that is

P = 2x - y + 3x + 5y + 12 + 6x + 9x + 2y - 2 ← collect like terms

  = 20x + 6y + 10

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So scientific notation is making the number manageable.

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8 0
3 years ago
What is the length of ST?​
defon

Answer:

5 cm

Step-by-step explanation:

Let's assume this is a number line were given.

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Distance of T from 0 = 9 units

Length of ST = the difference between T and S

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3 years ago
BONUS QUESTION: Is it true or false that each system of linear equations
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3 years ago
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Use the discriminate to determine the number and the nature of the solutions of the giving equation.
PolarNik [594]

Answer:

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Step-by-step explanation:

4x^2+12x=7

We need to subtract 7 to get it in the proper form

4x^2+12x-7=7-7

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The discriminant is b^2 -4ac

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(12)^2 - 4(4)(-7)

144 +112

256

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If b^2 -4ac < 0 we have two complex root

Since b^2 -4ac = 256 we have 2 real distinct root roots

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Parametric form.....


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7 0
2 years ago
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