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Oksi-84 [34.3K]

3 years ago

6

Simplify the expression 3X +7+ 4X +6 by combining like terms

2 answers:

slega [8]3 years ago

4 0

Answer:

7x + 13

Step-by-step explanation:

I know m math

Marrrta [24]3 years ago

3 0

7x+13 is the solution
3x+4x=7x
7+6=13

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Find the diagonal of the square whose side are of the given measure GIVEN=5

cestrela7 [59]

Here to find the diagonal, you would simply split the square diagonally into 2 triangles and use the Pythagorean theorem which is used on triangles:
a² + b² = c²
a and b are both short sides and c is the diagonal side. So since it's a square, a and b would both be 5 and you would solce for c which is the diagonal:
a² + b² = c²
5² + 5² = c² square the 5s
25 + 25 = c² add the 25s
50 = c² square root both numbers to get rid of Cs 2nd power
√50 = √c²
√50 = c you can reduce the square root if you want but √50 should be fine.
√(25 × 2) = c
√(5×5×2)
5√2 = c this is the reduced root

5 0

3 years ago

What is the value of x?

Arisa [49]

Answer:

Oioj[

Step-by-step explanation:

3 0

3 years ago

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I need help with this homogeneous equation

slamgirl [31]

Answer:

$ln [1 - (\frac{y}{x} )^{2} ] + ln x + c = 0$ . This is the solution.

Step-by-step explanation:

The homogeneous differential equation is given by

$\frac{dy}{dx} = \frac{x^{2} + y^{2} }{2xy}$

⇒ $\frac{dy}{dx} = \frac{1 + (\frac{y}{x} )^{2} }{2(\frac{y}{x} )}$ ........ (1)

Now to solve this differential equation we assume that y = vx where v is another variable.

So, differentiating with respect to x we get $\frac{dy}{dx} = v + x \frac{dv}{dx}$

Therefore, the above equation (1) becomes

$v + x \frac{dv}{dx} = \frac{1 + v^{2} }{2v}$ {Since $v = \frac{y}{x}$ }

⇒ $x\frac{dv}{dx} = \frac{1 + v^{2} - 2v^{2} }{2v}$

⇒ $x\frac{dv}{dx} = \frac{1 - v^{2}}{2v}$

⇒ $\frac{2v}{1 - v^{2} } dv = \frac{dx}{x}$ {By separation of variables}

Now, integrating both sides we get,

$\int {\frac{2v}{ 1- v^{2}}} \, dv = \int {\frac{dx}{x} } \, dx$

⇒ $- \int {\frac{d(1 - v^{2} )}{1 - v^{2}}} = \int {\frac{dx}{x} }$

⇒ $- ln (1 - v^{2}) = ln x + c$ {Where c is the integration constant}

⇒ $ln [1 - (\frac{y}{x} )^{2} ] + ln x + c = 0$ (Answer)

6 0

3 years ago

Joe flipped a coin 100 times. It landed heads

gayaneshka [121]

Answer:

48%

Step-by-step explanation:

48 out of 100 = 48%

:D

6 0

3 years ago

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julia-pushkina [17]

Answer:

29,291,280

Step-by-step explanation:

May not be right

4 0

3 years ago