<img src="https://tex.z-dn.net/?f=6y%20-%208%20%2B%202" id="TexFormula1" title="6y - 8 + 2" alt="6y

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Sauron [17]

2 years ago

lass="latex-formula">
simplify by combining like term

Mathematics

1 answer:

lutik1710 [3]2 years ago

8 0

so it will end up at 6y-6

you need to combine everything that does not have an exponent (example. a, x, y) and you combine the ones that have exponents together. and therefore you get 6y-6 (remember positive and negative signs)

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Solve the proportion

Vinvika [58]

Answer:

1. (3/2)

2. (20)

3. (3)

4. (-9/5)

5. (-8/7)

6. (-2/3), (4)

Step-by-step explanation:

1. 2. 3. 4.

x 3 12 3 x 1 x + 3 3

/ = / / = / / = / / = /

4 8 x 5 9 x 2 5

8x = 12 60 = 3x x² = 9 5x + 15 = 6

÷8 ÷8 ÷3 ÷3 x = √9 -15 -15

5x = -9

x = (3/2) x = 20 x = 3 ÷5 ÷5

x = (-9/5)

5. 6.

4 - x 3 1 x - 3

/ = / / = /

12 7 2x + 1 9

28 - 7x = 36 9 = 2x^2 - 5x - 3

-28 -28 + 3 + 3

12 = 2x^2 - 5x

-7x = 8 -12 -12

÷-7 ÷-7

2x^2 - 5x - 12 = 0

x = (-8/7)

-b +-√b^2 - 4ac

/ = -(-5)√-5^2 - 4 (2)(-12)

2a /

2(2)

= 5-+√121 5 - 11 -6

/ = / = / = (-2/3)

-4 4 4

= 5 + 11 16

/ = / = (4)

4 4

I hope this helps!

3 0

2 years ago

What is a simplified eCarlotta thinks that 3y + 5y3 is the same as 8y4. Which statement shows that it is NOT the same?Xpression

stira [4]

Questions:

(a) What is a simplified expression for (x + y) – (x – y)?

(b) Carlotta thinks that $3y + 5y^3$ is the same as $8y^4$ . Which statement shows that it is NOT the same?

Answer:

$(x + y) - (x - y) =2y$

$3y + 5y^3 \ne 8y^4$

Step-by-step explanation:

Solving (a):

Given

$(x + y) - (x - y)$

Required

Simplify

$(x + y) - (x - y)$

Open brackets

$(x + y) - (x - y) = x + y - x + y$

Collect Like Terms

$(x + y) - (x - y) = x - x+ y + y$

$(x + y) - (x - y) = y + y$

$(x + y) - (x - y) =2y$

Solving (b):

Given

$3y + 5y^3$ and $8y^4$

Required

Which expression shows they are not the same

The expression that shows this is:

$3y + 5y^3 \ne 8y^4$

Take for instance; y=2

Substitute 2 for y in $3y + 5y^3 \ne 8y^4$

$3*2 + 5*2^3 \ne 8*2^4$

Evaluate all exponents

$9 + 5*8 \ne 8*16$

$9 + 40 \ne 128$

$49 \ne 128$

The above expression supports $3y + 5y^3 \ne 8y^4$

5 0

3 years ago

Find the perimeter.

Scorpion4ik [409]

Answer:

7 1/3 inches

Step-by-step explanation:

2 (1 3/4 + 1 11/12)

9+11

3/4+11/12= -------------

20/12

=1 2/3+ 2

2(3 2/3)

= 7 1/3

7 0

3 years ago

Dimension of triangle A are three times the dimensions of triangle

nikitadnepr [17]

<span>a I took the test on ingenuity</span>

8 0

3 years ago

Read 2 more answers

Challenge question<br>please help<br>

Pani-rosa [81]

Answer:

The 3 possible values of x are;

6, 4 and 2

Step-by-step explanation:

If the triangle is isosceles, then two of the sides must be equal

So we equate the sides, 2 at a time to get the different values of x

3x + 4 = 2x + 10

3x-2x = 10-4

x = 6

3x + 4 = x + 12

3x-x = 12-4

2x = 8

x = 8/2 = 4

2x + 10 = x + 12

2x - x = 12-10

x = 2

7 0

3 years ago