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3 years ago

Simplify this expression 10x-5y+2x-3y

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

SO first combine like terms

You start with 10x-5y+2x-3y

so combine the terms with x

your new equation would be 12x-5y-3y

then combine the terms with y

so your final simplified would be

12x-8y

i haven't done this in a while but i hope that is right and helps :)

slamgirl [31]3 years ago

3 0

Answer: 12x-8y

Step-by-step explanation:

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What is the equation of the line that is

Fantom [35]

Answer:

$y = m_{AB}(X-2)-1$

Step-by-step explanation:

When two lines are parallel means that their slopes are equal. Therefore the line AB will have same slope to a parallel second line, $m_{AB} = m_{2}$ .

To obtain the slope from the line AB, we need two points, so the general equation will be:

$m_{AB} = \frac{y_{B} -y_{A} }{x_{B}-x_{A} }$

The typical equation of a line is written as y = mx + b

The second line will pass through point (2, -1), so we can substitute:

y2 = mX2 + b

-1 = $-1=m_{AB} (2)+b$ (2) + b

then the interception is $b=-m_{AB} -1$

Now to obtain a general equation for the second parallel line will be:

y = $m_{AB}$ X + b

y = $m_{AB}$ X - $m_{AB}$ (2)-1

Finally we get:

y = $m_{AB}$ (x-2)-1

3 0

3 years ago

Decompose the mixed number 1 3/5

Alex787 [66]

Answer: 8/5

Step-by-step explanation: 1x5+3=8/5

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7 0

2 years ago

Al lives 30 mi. from Ann. At the same time, they start biking toward each other on the same road. Al’s constant rate is 12 mph.

dolphi86 [110]

C. 1.5 hours. divide 12 by 8, and you get 1.5.

4 0

3 years ago

Need help use screenshot(SAT Prep) In △ABC, AB = BC = 20 and DE ≈ 9.28. Approximate BD. bd equals?

Lilit [14]

Answer:

5.36

Step-by-step explanation:

Given that:

<BAD = <CAE, therefore, BD = EC

Let's take x to be the length of BD = EC

BD + DE + EC = BC

BC = 20,

BD = EC = x

DE ≈ 9.28

Thus,

x + 9.28 + x = 20

x + x + 9.28 = 20

2x + 9.28 = 20

Subtract 9.28 from both sides

2x + 9.28 - 9.28 = 20 - 9.28

2x = 10.72

Divided both sides by 2 to solve for x

$\frac{2x}{2} = \frac{10.72}{2}$

$x = \frac{10.72}{2}$

$x = 5.36$

BD ≈ 5.36

4 0

3 years ago

Factorize : y^3 -2y^2 -29y -42

AVprozaik [17]

Answer: $(y-7)(y+3)(y+2)$

Step-by-step explanation:

$y^{3} -2y^{2}-29y-42\\\\(y^{2}-4y-21)(y+2)\\\\(y-7)(y+3)(y+2)\\\\$

Hope this helps, have a BLESSED AND WONDERFUL DAY! As well as a great Black History Month and Valentine's day! :-)

- Cutiepatutie ☺❀❤

7 0

3 years ago