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AleksandrR [38]

3 years ago

5

Use the distibutive property to simplify expression 27-9x+15y

1 answer:

IrinaVladis [17]3 years ago

6 0

Answer:

3(9-3x+5y)

Step-by-step explanation:

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QRST is a square. PQ = 2√ RU = 4<br> What is the length of SU? Round to the nearest tenth.

777dan777 [17]

Answer:

$SU=3.5\ units$

Step-by-step explanation:

step 1

In the isosceles right triangle PQT

PQ=PT ----> because is an isosceles triangle

Applying the Pythagoras Theorem

we have

$PQ=PT =\sqrt{2}\ units$

$QT^{2}=PQ^{2} +PT^{2}$

substitute the values

$QT^{2}=\sqrt{2}^{2} +\sqrt{2}^{2}$

$QT^{2}=4$

$QT=2\ units$

step 2

In the square QRST

$RS=QT=2\ units$

step 3

In the right triangle RSU

Applying the Pythagoras Theorem

$RU^{2}=RS^{2} +SU^{2}$

we have

$RU=4\ units$

$RS=2\ units$

substitute the values and solve for SU

$4^{2}=2^{2} +SU^{2}$

$SU^{2}=4^{2}-2^{2}$

$SU^{2}=12$

$SU=2\sqrt{3}\ units$

$SU=3.5\ units$

8 0

3 years ago

Someone pls help meee

mafiozo [28]

Its 6.8 for me so try that

6 0

3 years ago

Read 2 more answers

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Snezhnost [94]

The answer is rhombus

7 0

3 years ago

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Can u guys help me on number 4 and 5

Mekhanik [1.2K]

I hope this helps you! Feel free to ask ant questions

7 0

3 years ago

How do I complete this identity? sin(2θ) sin(4θ) cos(2θ) cos(4θ) = ?

egoroff_w [7]

Answer:

sin(20) sin(40) cos(40) cos(20)
[sin(20)*cos(20)]*[sin(40)*cos(40)]
[sin(2*20)/2]*[sin(2*40)/2]
[sin(40)*sin(80)]/2

8 0

4 years ago