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levacccp [35]
3 years ago
7

Multiply.

Mathematics
1 answer:
DanielleElmas [232]3 years ago
7 0

Answer & Step-by-step explanation:

<em>(x² - 5x)(2x² + x - 3)</em>

Multiply each term from the first expression into the second expression.

<em>2x⁴ + x³ - 3x² - 10x³ - 5x² + 15x</em>

Combine like terms.

<em>2x⁴ - 9x³ - 8x² + 15x</em>

So, after you multiply the expressions, your answer will be 2x⁴-9x³-8x²+15x.

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The center of mass is defined as a point on the straight line between two objects with masses m1 and m2 such that . What are the
STatiana [176]
Let the point be P, and the masses be located at P1 and P2.

The centre of mass is such that the moments of masses m1 and m2 exert an equal moment at the point P,
and the distance P1P2=d
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3 years ago
Read 2 more answers
What is y=8x+2 in standard form
Illusion [34]

Answer:

x =  \frac{ - 1}{4}  +  \frac{1}{8} y

Step-by-step explanation:

- 8x =2 - y

x =   \frac{ - 2}{8}  +  \frac{1}{8} y

6 0
3 years ago
Determine the measure of the minor arc, if the measure of its major arc is 200°.
Tom [10]
<span>The total has to be 360, so 360-200 = 160

</span><span>If the measure of its major arc is 200°, then the measure of the minor arc is 160.

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</span>
4 0
3 years ago
The concentration of the mixture obtained by mixing two solutions, A and B, is 20%. The concentration of the second mixture obta
Alexandra [31]

Answer:

<em>Concentration of solutions A and B are 33% and 7% respectively.</em>

Step-by-step explanation:

Suppose, the concentration of solutions A and B are x and y respectively.

<u>First mixture</u>

Ratio of solutions A and B is 1 : 1

Lets assume the amount of solution A is 1v and amount of solution B is 1v

Total amount of first mixture =1v+1v=2v and concentration of first mixture is 20%

So, the first equation will be.......

2v\times 0.20= (1v \times x)+(1v\times y)\\ \\ 0.40v=vx+vy\\ \\ x+y=0.40 .......................(1)

<u>Second mixture</u>

Ratio of solutions A and B is 3 : 7

Lets assume the amount of solution A is 3v and amount of solution B is 7v

Total amount of first mixture =3v+7v=10v and concentration of first mixture is 14.8%

So, the second equation will be.......

10v\times 0.148= (3v \times x)+(7v\times y)\\ \\ 1.48v=3vx+7vy\\ \\ 3x+7y=1.48 .......................(2)


From equation (1), we will get :   y=0.40-x

Now substituting this y=0.40-x into equation (2)......

3x+7(0.40-x)=1.48\\ \\ 3x+2.80-7x=1.48\\ \\ -4x=1.48-2.80\\ \\ -4x=-1.32\\ \\ x=\frac{-1.32}{-4}=0.33

Plugging this x=0.33 into equation (1), we will get......

0.33+y= 0.40\\ \\ y=0.40-0.33=0.07

So, the concentration of solution A is 0.33 or 33%  and the concentration of solution B is 0.07 or 7%

4 0
3 years ago
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