All categories

3 years ago

B) 6x(x - 2y) + 5y(x – 2y)

Mathematics

1 answer:

Tcecarenko [31]3 years ago

7 0

answer:

6x(x - 2y) + 5y(x – 2y)

= 6x^2 - 12xy + 5xy - 10y^2

= 6x^2 - 7xy - 10y^2

You might be interested in

Find the general indefinite integral. (Use C for the constant of integration. Remember to use absolute values where appropriate.

Maru [420]

Answer:

$9\text{ln}|x|+2\sqrt{x}+x+C$

Step-by-step explanation:

We have been an integral $\int \frac{9+\sqrt{x}+x}{x}dx$ . We are asked to find the general solution for the given indefinite integral.

We can rewrite our given integral as:

$\int \frac{9}{x}+\frac{\sqrt{x}}{x}+\frac{x}{x}dx$

$\int \frac{9}{x}+\frac{1}{\sqrt{x}}+1dx$

Now, we will apply the sum rule of integrals as:

$\int \frac{9}{x}dx+\int \frac{1}{\sqrt{x}}dx+\int 1dx$

$9\int \frac{1}{x}dx+\int x^{-\frac{1}{2}}dx+\int 1dx$

Using common integral $\int \frac{1}{x}dx=\text{ln}|x|$ , we will get:

$9\text{ln}|x|+\int x^{-\frac{1}{2}}dx+\int 1dx$

Now, we will use power rule of integrals as:

$9\text{ln}|x|+\frac{x^{-\frac{1}{2}+1}}{-\frac{1}{2}+1}+\int 1dx$

$9\text{ln}|x|+\frac{x^{\frac{1}{2}}}{\frac{1}{2}}+\int 1dx$

$9\text{ln}|x|+2x^{\frac{1}{2}}+\int 1dx$

$9\text{ln}|x|+2\sqrt{x}+\int 1dx$

We know that integral of a constant is equal to constant times x, so integral of 1 would be x.

$9\text{ln}|x|+2\sqrt{x}+x+C$

Therefore, our required integral would be $9\text{ln}|x|+2\sqrt{x}+x+C$ .

4 0

3 years ago

A wheel is shaped like a circle with a diameter of 35 cm. To the nearest

zhenek [66]

Answer:

C = 110 cm

Step-by-step explanation:

The circumference is given by

C = pi *d

C = 3.14 * d

C = 3.14 * 35

C =109.9

Rounding

C = 110 cm

3 0

4 years ago

__•__=42<br> __+__=23<br><br><br> Can someone help me solve this?

RoseWind [281]

Answer:

21 * 2 = 42

21 + 2 = 23

Step-by-step explanation:

well I know that 6 * 7 = 42 so I’m assuming that’s correct

Then 11 + 12 = 23 it could be the answer I’m not positive for this one though.

The first one should be correct.

Maybe try

21 * 2 = 42

21 + 2 = 23

3 0

2 years ago

Plz help! I’m super confused! Thank you!

GREYUIT [131]

Answer:

Step-by-step explanation:

7 0

3 years ago

In their first 7 months of business, the account books of a merchandising company showed revenues of -$3,299. What was the compa

melisa1 [442]

Answer:

Step-by-step explanation:

-$400

6 0

3 years ago

Read 2 more answers

B) 6x(x - 2y) + 5y(x – 2y)​

B) 6x(x - 2y) + 5y(x – 2y)