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2 years ago

I WILL MARK BRAINLIEST, 25 PTS!!!

Mathematics

2 answers:

NikAS [45]2 years ago

8 0

Answer:

Step-by-step explanation:

B should be (2,3) and D should be (2, -4) because its just a reflection of the two points. :)

timofeeve [1]2 years ago

8 0

Answer:

B(2, 3) and D(2, −4)

Step-by-step explanation:

Area of rectangle = L x W

AC = 7 units

35 = 7 x W

W = 35/7 = 5

So from Point A, draw 5 units to the right ; B(2,3) and from point B, draw 7 units down D (2,-4).

Rectangle, the opposite sides are equal so AC = BD = 7, AB = CB = 5

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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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2 years ago

Simplify 2+16x-9-10x

Brut [27]

Answer:

6x -7 is your answer

Step-by-step explanation:

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2 years ago

Which equation represents a proportional relationship?

Mama L [17]

Answer:

A. y = 1/2 x

Step-by-step explanation:

A proportional relationship between two quantities is a collection of equivalent ratios, related to each other by a constant of proportionality. In other words, if each point on the line can be put as a fraction and reduced to the same fraction, the relationship is proportional.

7 0

2 years ago

Read 2 more answers

What is the x-intercept of the line with this equation? <br><br>−5x + <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D" i

Sonja [21]

The x-intercept is the point on the graph where it crosses the x-axis. It’s also the value of the x-coordinate when y = 0.

To find the x-intercept, set y = 0:

-5x + 1/5(0) = 15

-5x + 0 = 15
-5x = 15

Divide both sides by -5:

x = -3.

Therefore, the x-intercept is (-3, 0).

Please mark my answers as the Brainliest if your find my explanations helpful :)

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2 years ago

Solve for c of the right triangle

Ede4ka [16]

In order to solve this triangle we must use cosine law:
$c^{2} = a^{2} + b^{2} - 2ab*cosC$

Now let's plug in the values we are given:
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5 0

3 years ago

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