3 years ago

Simplify by combining like terms: 3x + 3x + 3x

Mathematics

2 answers:

Leto [7]3 years ago

6 0

The answer is 9x. I hope I was a helpful hand for you.

9966 [12]3 years ago

5 0

The answer is 9x when you combine like terms

You might be interested in

Tins of soup claim to contain 300 ml of soup. Aki wants to test if this is an accurate claim. She samples n tins of soup and fin

Basile [38]

This is the dumbest experiment in the world. Like seriously _s o u p c a n s ?

8 0

3 years ago

What is 11,339,800 to the nearest whole number

Bas_tet [7]

11,339,800 is 11,340,000 rounded to the nearest whole number

4 0

3 years ago

Read 2 more answers

Help don’t understand

Aneli [31]

Rational due to it’s a multiple

8 0

3 years ago

Determine whether the given differential equation is exact. If it is exact, solve it. (If it is not exact, enter NOT.) (tan(x) −

never [62]

Answer:

$f(x,y)=ln secx+cosx siny+C$

Step-by-step explanation:

We are given that DE

$(tanx-sinx siny)dx+cosxcosydy=0$

We have to determine given DE is exact or not.

Compare it with Mdx+Ndy=0

$M=tanx-sinx siny$

$N=cosxcosy$

$\frac{\partial M}{\partial y}=$ $M_y=-sinxcosy$

$\frac{\partial N}{\partial x}=N_x=-sinxcosy$

Therefore, $M_y=N_x$

If DE is exact then $M_y=N_x$

Hence,it is exact.

$M=\frac{\partial f}{\partial x}=tanx-sinxsiny$

Integrate w.r.t x on both sides

$f(x,y)=\int(tanx-sinxsiny)dx$

$f(x,y)=lnsecx+cosxsiny+\phi(y)$ ...(1)

By using the formula

$\int tanxdx=lnsecx+C,\int sinxdx=-cosx+C$

Differentiate partially equation (1) w.r.t y

$\frac{\partial f}{\partial y}=cosxcosy+\phi'(y)$

By using the formula:

$\frac{d(sinx)}{dx}=cosx$

$N=\frac{\partial f}{\partial y}=cosxcosy=cosxcosy+\phi'(y)$

$\phi'(y)=cosxcosy-cosxcosy=0$

$\phi'(y)=0$

Integrate w.r.t y

$\phi(y)=C$

Substitute the value

$f(x,y)=ln secx+cosx siny+C$

7 0

3 years ago

A solution has a pH of 2.4. What happens to the solution if the hydronium ion concentration is increased? The pH decreases. The

natali 33 [55]

Addition of a hydronium ion increases its concentration and the solution becomes more acidic, Therefore the pH decreases.

7 0

3 years ago

Read 2 more answers