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2 years ago

(x^4) (3x^3-2) (4x^2+5x)

Mathematics

1 answer:

nydimaria [60]2 years ago

5 0

Answer:

12x^7+15x^6

Step-by-step explanation:

Change 3x^3-2 to 3x

(x^4)(3x)(4x^2+5x)

Multiply your single terms

(3x^5)(4x^2+5x)

Then distribute

12x^7+15x^6

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How many liters of acid needs to be added to convert a 6-liter 25% acid solution to a 30% acid solution

zvonat [6]

You need 15L of pure acid

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2 years ago

3a+2b=8<br><br> \displaystyle a = 6b + 6 a=6b+6

kherson [118]

First, let's write it like this:
$3a+2b=8$
Subtract $2b$ from both sides.
$3a+2b-2b=8-2b$
$3a=8-2b$
Divide both sides by 3.
$\frac{3a}{3}=\frac{8-2b}{3}$
$a=\frac{8-2b}{3}$

Now that we know what's the value of $a$ , let's find the value of $b$
$3\cdot \frac{8-2b}{3}+2b=8$
Let's take the first part.
$3\cdot \frac{8-2b}{3}$
Multiply the fractions.
$=\frac{\left(8-2b\right)\cdot \:3}{3}$
Cancel the common factor, which is 3.
$=8-2b$
We would be left with.
$=8-2b+2b$
Add like terms.
$=8$
We would be left with.
$8=8$
Subtract 8 from both sides.
$8-8=8-8$
$0=0$

This tells us that $b$ can be any number.

Let me know if you need any help!
Thanks!
-TetraFish

5 0

3 years ago

Which of the following is an example of financial responsibility?

dsp73

Answer:

Having medical insurance.

Step-by-step explanation:

Process of elimination...

borrowing a car from your brother you may break and have to replace- not responsible

Having medical insurance so if something were to happen you have some insurance to rely on- responsible

Spending money before you have earned it is not responsible because you may not get to money to pay it back on time- not responsible

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3 years ago

6. To check whether the rose bush lies on the circle, see if its coordinates make the

Alexxandr [17]

Part of question :

(x-10)^2+(y-10)^2=100

(16-10)^2+(18-10)^2=100

Answer:

Yes, equation of circle is true

Step-by-step explanation:

(x-10)^2+(y-10)^2=100

(16-10)^2+(18-10)^2=100

100=100

plugging the coordinates into the equation of the circle, we observe that the equation is true since both sides of the equation are equal(value on both sides of the equal sign are same). This wouldn't be true if for instance the left side of the equation evaluated to ≠100. Therefore we can conclude that the rose bush lies on circle since the equation is true

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3 years ago

8(12 – k) = 3(k+21)

mixas84 [53]

Use Photomath!! Helps a lot

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3 years ago

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