3 years ago

What is m please help

Mathematics

1 answer:

mafiozo [28]3 years ago

7 0

The answer is A. 45. if you subtract the greater number from the least you should get your answer.

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The roots of a quadratic equation ax2+bx+c=0 are 3+sqrt2 and 3−sqrt2. Find the values of b and c assuming that a=1.

slamgirl [31]

Answer:

$b=-6\\c=7$

Step-by-step explanation:

we know that

The general equation of a quadratic function in factored form is equal to

$y=a(x-x_1)(x-x_2)$

where

a is a coefficient of the leading term

x_1 and x_2 are the roots

we have

$a=1\\x_1=3+\sqrt{2}\\x_2=3-\sqrt{2}$

substitute

$y=(1)(x-(3+\sqrt{2}))(x-(3-\sqrt{2}))$

Applying the distributive property convert to expanded form

$y=x^2-x(3-\sqrt{2})-x(3+\sqrt{2})+(3+\sqrt{2})(3-\sqrt{2})$

$y=x^2-(3x-x\sqrt{2})-(3x+x\sqrt{2})+(9-2)$

$y=x^2-3x+x\sqrt{2}-3x-x\sqrt{2}+7$

$y=x^2-6x+7$

therefore

$b=-6\\c=7$

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3 years ago

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lubasha [3.4K]

Answer:

X - 5 = 4

Step-by-step explanation:

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3 years ago

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nika2105 [10]

Answer:

I'm sorry, I don't know if I know this but you should try Desmos if you haven't already. It's great for helping with slopes and stuff like this

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3 years ago

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koban [17]

Angle B= 45 degrees
Angle A = 45 degrees

A and B are congruent since they are alternate exterior angles
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5x = 2x +36
3x=36
X=12
B)
2x12+21 = 45
A)
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3 years ago

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Eva8 [605]

Answer:

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Step-by-step explanation:

V = $4\pi (\frac{12^{3} }{3})$ = 7238.2

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