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3 years ago

Select the correct answer.

Mathematics

2 answers:

adoni [48]3 years ago

5 0

Answer: quaint

Step-by-step explanation: correct on edmentum

Alina [70]3 years ago

4 0

Answer:

Incisive

Step-by-step explanation:

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!!PLEASE HELP ME ANSWER!!

Igoryamba

Answer:

$x = \sqrt{w(w+z)}$

Step-by-step explanation:

By the Pythagorean theorem, triangle BCD has

$y^2 = x^2 - w^2$

and triangle ABD has

$v^2 = y^2 + z^2$ .

Substituting the first equation into the second equation for $y^2$ gives the equation

$v^2 = (x^2 - w^2) + z^2$

Now triangle ABC has

$(w+z)^2 = x^2 + v^2$

Expanding out the left side, $w^2 + 2wz + z^2 = x^2 + v^2$ .

Now substitute the equation from before, $v^2 = x^2 - w^2 + z^2$ , into the new equation.

$w^2 + 2wz + z^2 = x^2 + (x^2 - w^2 + z^2)$

$w^2 + 2wz + z^2 =2x^2 - w^2 + z^2$

We work to isolate $x^2$ by adding $w^2$ to both sides of equation and subtracting $z^2$ from both sides.

$2w^2 + 2wz = 2x^2$

Divide both sides by 2 and you get $w^2 + wz = x^2$

Assume that x is positive and square root both sides to get the final result of

$x = \sqrt{w^2 + wz} = \sqrt{w(w+z)}$

4 0

3 years ago

If the triangle on the grid below is translated by using the rule (x, y) right-arrow (x minus 2, y + 2), what will be the coordi

vladimir1956 [14]

Answer:

A' (-4,0)

Step-by-step explanation:

<u><em>The complete question is</em></u>

If the triangle on the grid below is translated by using the rule (x, y) right-arrow (x minus 2, y + 2), what will be the coordinates of A prime? On a coordinate plane, triangle A B C has points A(negative 2, negative 2), B(negative 2, negative 4), C(2, negative 4)

we know that

The rule of the translation is

(x,y) -----> (x-2,y+2)

The coordinates of point A (-2,-2)

Applying the rule of the translation to coordinate A

A (-2,-2) ----- A' (-2-2,-2+2)

A (-2,-2) ----- A' (-4,0)

5 0

3 years ago

Read 2 more answers

I need help as fast as possible please

FrozenT [24]