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AysviL [449]
3 years ago
6

Solve the system of equations 10×+7y=99andy-×=2?

Mathematics
1 answer:
djverab [1.8K]3 years ago
8 0
You can use substitution and solve y-x=2 for y which is y= x+ 2 and plug it into the y of the other equasion and you get x=5 y=7
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Lable -4 1/2, 5.6, -2 3/8 and 1.35 from least to greatest
tiny-mole [99]
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What value of x will make the triangles similar by the SSS similarity theorem?
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Answer:

1,5

Step-by-step explanation:

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3 years ago
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Soloha48 [4]

Answer:

For (2x^2 + 8x - 8), the group is CLOSED as it a polynomial.

Step-by-step explanation:

Here, the given polynomials are:

P(x)=(5x^2+2x-6)\\Q(x)=(3x^2-6x+2)

Now, a group G is said to be <u>CLOSED UNDER SUBTRACTION</u> if,

a and b are he elements of G ⇒ (a-b) is ALSO AN ELEMENT of G

Now, here:

R(x)  = P(x) - Q(x) = (5x^2+2x-6) - (3x^2-6x+2) = (2x^2 + 8x - 8)

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Also, R(x) is a POLYNOMIAL.

So, R(x) is an Element of group G.

So, the set G of polynomials.

Hence, for the polynomial  (2x^2 + 8x - 8), it will be a polynomial the group is CLOSED.

3 0
3 years ago
Read 2 more answers
Help me with this!!!! ( fake answers will be reported :)) )
Rainbow [258]

Answer:

16

Step-by-step explanation:

3x-2x=8

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2 years ago
The expression (x2 + 16x + 64) – (x + 8)(x – 4) can be rewritten as k(x + 8). What is the value of k? k =
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expanding \\  {x}^{2}  + 16x + 64 - ( {x}^{2}  + 4x - 32)  \\ distributing \:  - 1 \\  {x}^{2}  + 16x + 64 -  {x}^{2}  - 4x + 32 \\ 12x + 96 \\ take \: a \: factor \: of \: 12 \\ 12(x + 8) \\ so \: k = 12
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2 years ago
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