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3 years ago

Find xyz (plz answer it properly )

Mathematics

1 answer:

Airida [17]3 years ago

3 0

Answer:

<ABC=50

<EDB=30

<DFC=60

Step-by-step explanation:

<ABC=50 BECAUSE ANGLE SUM PROPERTY

90+40+50=180

<EDB=30 BECUSE ANGLE SUM PROPERTY

100+50+30=180

<DFC=60 BECAUSE ANGLE SUM PROPERTY

30+90+50=180

HOPE IT HELPS <3<3

PLZ RATE IT

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T= u+v/2 for u •u= 2t+v •u= 2t/v •u= 2(t-v) •u= 2t-v

ratelena [41]

Answer:

u=2t-v

Step-by-step explanation:

t=(u+v)÷2 |×2

2t=u+v

-u=v-2t |:(-1)

u=-v+2t

u=2t-v

3 0

3 years ago

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Solve the linear differential equation 2xy' + y = 2√x

77julia77 [94]

Answer:

Step-by-step explanation:

General form of the linear differential equation can be written as:

$\frac{dy}{dx}+P(x)y=Q(x)$

For this case, we can rewrite the equation as:

$\frac{dy}{dx}+\frac{1}{2x}y=\frac{\sqrt{x}}{x}$

Here $P(x) =\frac{1}{2x}; Q(x)=\frac{\sqrt{x}}{x}$

To find the solution (y(x)), we can use the integration factor method:

$Fy(x)=\int Q(x)Fdx+C \rightarrow F=e^{\int P(x)dx$

Then $F=e^{\int \frac{1}{2x}dx}=e^{\frac{1}{2}\ln|x|\right}=\sqrt{|x|}$

So, we can find:

$y\sqrt{|x|}=\int \frac{\sqrt{x}\sqrt{|x|}}{x}dx+C$

Suppose that $x\in \double R$ , then $\sqrt{|x|}=\sqrt{x}$ , and we find:

$y\sqrt{x}=x+C \rightarrow y(x)=\sqrt{x}+\frac{C\sqrt{x}}{x}$

To check our solution is right or not, put your y(x) back to the ODE:

$y' = \frac{1}{2\sqrt{x}}-\frac{C}{2\sqrt{x^{3}}}$

$2xy'=\frac{x-C}{\sqrt{x}}$

$2xy'+y=\frac{x-C}{\sqrt{x}}+\sqrt{x}+\frac{C\sqrt{x}}{x}=2\sqrt{x}$

(it means your solution is right)

3 0

2 years ago

1. 1/8 + 5/6 =?

Ivan

1)Find the lcd for 1/8+5/6
=2/24+5*4/24
since the denominators are equal, combine the fractions
=3+4*5/24
=23/24

2)Convert the mixed numbers to improper
=15/8*17/5
=255/40
=51/8
=6 3/8

3)1/9 divided by 3
1/3*9
=1/27

4) 2 3/5* 2 6/35
13/5*76/35
13*76/175
988/175
=5 113/175

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4 years ago

Help me please tysm!

crimeas [40]

Answer:

2 is the awnser

55.^

Becuase 6-5=1

1-6=5

5-4=1

1-3=2

5 0

3 years ago

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The product of two numbers is 90, and one of the numbers is n. What is the other number?

Katen [24]

Answer:

Step-by-step explanation:

90/n

8 0

3 years ago