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german
3 years ago
5

Adding and subtracting polynomials(6x² - 3x - 1) - (x + 8)​

Mathematics
1 answer:
Lynna [10]3 years ago
6 0

Answer:

Simplify equation :  

6x^2 - 4x - 9

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How to solve 3x-y=11, x+2y=6 with the method of elimination?​
zubka84 [21]

Answer:

First point we take the centre number

2[ 3x-y=11]

-1[ x+2y=6]

second we multiply and we adding

6x-2y=22

-x+-2y=-6

_________

5x/5=18/5

x= 3.4

Step-by-step explanation:

third point we take 3x-y=11 any x where we see we change 3.4

3(3.4)-y=11

10.2-y=11

y=10.2-11

y=0.8

4 0
2 years ago
Factor <br> 50t^2-20t-30=??
topjm [15]

The answer is 10(t-1) (5t+3).

An algebraic equation of the second degree in x is a quadratic equation. Typically, a quadratic equation is expressed in standard form as,ax^2 + bx + c = 0.

And the factor is a number or algebraic expression that divides another number evenly without leaving any remainder.

To factor the given quadratic equation, first, take the common factor of the equation. Therefore,

50t^2-20t-30=10(5t^2-2t-3)

Using the sum-product pattern, we can write 2t as 3t-5t. Therefore,

50t^2-20t-30=10(5t^2+3t-5t-3)

Now, find the common factor between the pairs within the bracket. We get,

50t^2-20t-30=10(t(5t+3)-1(5t+3))

Finally, rewriting the above terms by factoring out the greatest common factor, we get,

50t^2-20t-30=10(t-1)(5t+3)

To know more about factoring quadratic equations:

brainly.com/question/1863222

7 0
1 year ago
Read 2 more answers
PLEASE HELP ME
kogti [31]

Option D

The system of equation has no solution

<em><u>Solution:</u></em>

<em><u>Given system of equations:</u></em>

\frac{2}{3}x + y = 6\\\\Simplify\\\\2x + 3y = 18 ------ eqn 1

\frac{-2}{3}x -y = 2\\\\Simplify\\\\-2x -3y = 6 ------- eqn 2

Solve eqn 1 and eqn 2

Add eqn 1 and eqn 2

2x + 3y -2x - 3y = 18 + 6

2x + 3y = 2x + 3y + 18 + 6

0\neq 24

If the coefficients are the same on both sides then the sides will not equal, therefore no solutions will occur.

No solution would mean that there is no answer to the equation

Thus the system of equation has no solution

3 0
4 years ago
Read 2 more answers
Solve the formula
maxonik [38]

Answer:

\large\boxed{B)\ \dfrac{3V}{3.14r^2}}

Step-by-step explanation:

\dfrac{1}{3}\cdot3.14\cdot r^2h=V\\\\\dfrac{3.14}{3}r^2h=V\qquad\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup^1\cdot\dfrac{3.14}{3\!\!\!\!\diagup_1}r^2h=3V\\\\3.14r^2h=3V\qquad\text{divide both sides by}\ 3.14r^2\\\\h=\dfrac{3V}{3.14r^2}

5 0
4 years ago
Solve this questionhhhhhhhh
Ludmilka [50]
18 + 64 - 12

PEMDAS tells us that addition comes before subtraction :)

So, we do 18 + 64 before subtracting 12.

18 + 64 = 82

82 - 12 = 70

So, 18 + 64 - 12 = 70

~Hope I helped!~
3 0
4 years ago
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