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adell [148]
3 years ago
5

Question 1 options:

Mathematics
1 answer:
Whitepunk [10]3 years ago
6 0

Answer:

\frac{-1+/-3\sqrt{2} }{2}  where a = 1, b = 1,and c=-4

Step-by-step explanation:

To solve, use the quadratic formula. Using the quadratic formula, requires the standard form ax^2+bx+c Here a = 1, b = 1, and c = -4.

The quadratic formula is x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}.

Substitute and you'll have:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-1+/-\sqrt{1^2-4(1)(-4)} }{2(1)}=\frac{-1+/-\sqrt{1+17} }{2)}

\frac{-1+/-\sqrt{18} }{2}=\frac{-1+/-3\sqrt{2} }{2}

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denis23 [38]

Answer:

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Step-by-step explanation:

Given

- 3r = 87 ( divide both sides by - 3 )

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7 0
3 years ago
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7. A city lot is twice as long as it is wide, If its perimeter is 480 units, what are the dimensions of the lot?
g100num [7]

Answer:

Step-by-step explanation:

P = 480

P = 2 length + 2 width

but we also know that

2width = length

so plug that into the length

P = 2(2width) + 2 width

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see?

3 0
3 years ago
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3241004551 [841]
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3 0
3 years ago
What is the distance between (5,8) and (2,4) by using distance formula
Dimas [21]

Answer:

Distance = 5

Step-by-step explanation:

D= sqrt (x1-x2)^2 + (y1-y2)^2

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Sqrt of 25 = 5

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Hope this helps

7 0
3 years ago
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Answer:

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If Denise scored 3 fewer points, then you would add three to 18 to get the number of points that Carter scored.

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