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mart [117]
4 years ago
14

Simplify the radical expression square root of 81x^4

Mathematics
1 answer:
jeka944 years ago
3 0
9x^2 should be the sqrt(81x^4)
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Triangles Q R S and X Y Z are shown. Angles Q S R and X Z Y are right angles. Angles Q R S and X Y Z are congruent. The length o
kumpel [21]

Answer:

Three-fourths

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

∠QSR≅∠XZY ---> given problem

∠QRS≅∠XYZ ---> given problem

so

△QRS ~ △XYZ ----> by AA Similarity theorem

Remember that, if two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

That means

\frac{QS}{XZ}=\frac{QR}{XY}=\frac{RS}{YZ}

∠Q≅∠X

∠R≅∠Y

∠S≅∠Z

<em>In the right triangle XYZ</em>

Find the tangent of angle X

tan(X)=\frac{YZ}{XZ} ---> opposite side angle X divided by adjacent side angle X

substitute the given values

tan(X)=\frac{9}{12}

Simplify

tan(X)=\frac{3}{4}

Remember that

∠Q≅∠X

so

tan(Q)=tan(X)

therefore

tan(Q)=\frac{3}{4} ---->Three-fourths

7 0
3 years ago
Read 2 more answers
The length of a rectangle is six times its width. If the perimeter of the rectangle is 126cm , find its area.
lorasvet [3.4K]

Answer:

The area = 486 cm^2

The length is 54 cm and the width is 9 cm

54 times 9 = 486

8 0
3 years ago
At a fair, the Pick-A-Duck game has 55 ducks to choose from, but only 11 of the ducks will win a prize.
zvonat [6]
Probablity=desiredoutcomes/totalpossible

desired=prize=11
total possible=55
so probblity is 11/55 or 1/5

answer is C
4 0
3 years ago
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Point A is located at (0, 4), and point B is located at (−2, −3). Find the x value for the point that is 1 over 4 the distance f
Serjik [45]
-0.5

Hope this helps, explanation is in image :)

7 0
2 years ago
A triangle has side lengths of 12 cm, 35 cm, and 42 cm
aalyn [17]
So, what you want to know
3 0
3 years ago
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