2 years ago

Simply 3x +9y + 2x Please help me

Mathematics

2 answers:

dem82 [27]2 years ago

4 0

Answer:

5x+9y

Step-by-step explanation:

ASHA 777 [7]2 years ago

3 0

Step-by-step explanation: Notice that 3x and 2x are like terms.

So we can combine them to get 5x.

Since 9y is the only y term, we leave it separate.

So our answer is 5x + 9y.

You might be interested in

You are situated 300 feet from the base of Tower Glitz Plaza watching an external elevator descend down the side of the building

nordsb [41]

Answer:

18.66 ft/s

Step-by-step explanation:

The distance between you and the elevator is given by:

$h=\sqrt{x^2+y^2}$

The rate of change for the distance between you and the elevator is given by:

$\frac{dh}{dt}=\frac{dh}{dy}*\frac{dy}{dt}$

$-16=\frac{dh}{dy}*\frac{dy}{dt}$

$\frac{dh}{dy}=\frac{d}{dy} (\sqrt{x^2+y^2})\\$

Applying the chain rule:

$u=x^2+y^2\\\frac{dh}{dy}=\frac{d\sqrt u}{du} *\frac{du}{dy}\\\frac{dh}{dy}=\frac{1}{2\sqrt u} *2y\\\frac{dh}{dy}=\frac{y}{\sqrt {(x^2+y^2)}}$

Therefore, at x=300 and y = 500, dy/dt is:

$-16=\frac{y}{\sqrt {(x^2+y^2)}}*\frac{dy}{dt}\\-16=\frac{500}{\sqrt {(300^2+500^2)}}*\frac{dy}{dt}\\\frac{dy}{dt}=-18.66\ ft/s$

The elevator is descending at 18.66 ft/s.

7 0

3 years ago

The Lake Smith basketball team had a team picture taken of the players, the coaches, and the trophies from the season. The pictu

UkoKoshka [18]

Answer:

hi how r u

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Express 38% as a fraction in simplest form.

Gnoma [55]

Answer:

19/50

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Drag each term to the correct location on the expression. each term can be used more than once, but not all terms will be used.

grandymaker [24]

Answer:

4(x-3)(x+6)

Step-by-step explanation:

We factor out the 4 first since all numbers are divisible by 4. That leaves us with x^2+3x-18.

Then we factor this to get (x-3)(x+6).

So the factored form of the equation is 4(x-3)(x+6)

8 0

3 years ago

Is -13x+3 increasing or decreasing negative or positive slope????

Dafna11 [192]

-13x + 3 is decreasing and has a negative slope.

6 0

3 years ago