3 years ago

2x + y = 3

Mathematics

1 answer:

Leto [7]3 years ago

3 0

It should be B 3y=5 hope I'm right.

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Answer: i think its a im not sure sorry

Step-by-step explanation:

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3 years ago

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fenix001 [56]

Answer:

Probability from Urban Area = $\frac{55}{89}$

Probability NOT from Rural Area = $\frac{83}{89}$

Step-by-step explanation:

Total 178

Urban 110

Suburban 56

Rural 12

Hence, probability of x is number of x divided by total.

So, probability that she is from an urban area = 110/178 = 55/89

And

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3 years ago

Please answer the question from the attachment.

spin [16.1K]

Hi,

7x²-2x-8=0, so a = 7, b= - 2, and c = -8.

You just need to apply the formula for square equations:

$x_{1,2}=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-2)\pm\sqrt{(-2)^2-4\cdot 7\cdot (-8)}}{2\cdot 7}=\dfrac{2\pm\sqrt{228}}{14}=\dfrac{2\pm\sqrt{4\cdot 57}}{14}=\\\\=\dfrac{1\pm\sqrt{57}}7\Rightarrow x_1=\dfrac{1-\sqrt{57}}7,\;and\;x_2=\dfrac{1+\sqrt{57}}7.$

Green eyes.

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3 years ago

Calculate the value of this expression by writing the decimal factors as fractions, then writing their product as a decimal. Sho

Rina8888 [55]

Answer:

0.0002

Step-by-step explanation:

hope this helps

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3 years ago

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vredina [299]

Answer:

Step-by-step explanation:

#1: 4x - 8 = 16 (You want to remove -8)

#2: 4x = 24 (In order to remove -8 you need to cancel it out, add 8 to -8, also add 8 to 16)

#3: 4x = 24 (Now you need to get the x by itself, divide 4x by 4 to only get x and also divide 24 by 4)

#4: x = 6

Rule of Thumb: If you do something to one side, to it to the other :)

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3 years ago

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