3 years ago

Help me with this please

Mathematics

1 answer:

stiv31 [10]3 years ago

4 0

Look it up Dhshsudbdd fb

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How is 55% expressed as a fraction

sineoko [7]

Answer:

11/20

Step-by-step explanation:

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3 years ago

Help please it's a math assignment

expeople1 [14]

I'm pretty sure it's graph A. I apologize if it's wrong hope this helped.

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3 years ago

If f(x) = 2x-1 and g(x) = x^2-3x-2, find (f+g)(x)

alina1380 [7]

All this means is (f(x)) + (g(x))

2x-1+ x^2-3x-2=

=== x^2 - x -3

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3 years ago

Read 2 more answers

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

$b=-6\\c=7$

7 0

3 years ago

Simplify 2y^2 + 2y + 2y + 2x^2.

klio [65]

Answer:

2x^2+2y^2+4y would be your answer

Step-by-step explanation:

7 0

2 years ago

Help me with this please​

Help me with this please