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MariettaO [177]
3 years ago
15

Find a quadratic equation with integer coefficient ,if one of the roots is 7-root3

Mathematics
1 answer:
solmaris [256]3 years ago
6 0
One of the roots of a quadratic equation is 7 - √3.

Because rational roots occur in conjugate pairs, the other root is 7 + √3.
The quadratic equation is
(x -(7-√3))(x - (7+√3))
= x² - (7+√3)x  - (7-√3)x + (49-3)
= x² - 7x - (√3)x - 7x + (√3)x + 46
= x² - 14x + 46

Answer: x² - 14x + 46


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The value of y varies directly with x, and y = 48 when x = 16. Find y when x = 176.
emmainna [20.7K]
Try to find what y is when x is equal to one.

48/16= 3

So, when x is 1, y is 3.

(1,3)

All you need to do is multiply 176 by 3 for the correct value of y.

176*3= 528

When x= 176, y= 528. (176,528)

I hope this helps!
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Anuta_ua [19.1K]
13 + (-12) - (-5)

13 - 12 + 5

1 + 5

= 6.

Answer is A)
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NEED HELP DUE TODAY HELP
Gennadij [26K]

Answer: C

Step-by-step explanation:

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Select the correct answer.
IceJOKER [234]

Answer: Option D. y+2x=3


Solution

If a line with a slope of -2:

Slope: m=-2

crosses the y-axis at (0,3):

(0,3)=(0,b)→b=3

What is the equation of the line?

y=mx+b

Replacing the known values:

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Adding 2x both sides of the equation:

y+2x=-2x+3+2x

y+2x=3


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Answer:

The answer is 1 5/6

Step-by-step explanation:

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