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3 years ago

8

Is y = 5 a linear function?

2 answers:

Ugo [173]3 years ago

6 0

No, because the form for a linear function is y=mx+b; y=5 is just a line.

Arlecino [84]3 years ago

4 0

<span>Yes it is a horizontal line 5 units above the x-axis. You know that it is horizontal because there is no slope or variable x. This line is a function just as any other line with the only "peculiarity" being that it is horizontal and thus has no slope.

Now a vertical line like x=3 is a line but not a function because it would fail the vertical line test...</span>

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Need help with this..

SashulF [63]

Answer:75+5.5x equal or greater than 130

Step-by-step explanation:

8 0

3 years ago

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Please help ASAP! giving BRAINLIEST if correct! What is the factorization of the polynomial below?

Agata [3.3K]

Answer:

2(x+6)(x+6)

Step-by-step explanation:

splitting the middle term:

2x²+12x+12x+72

then2x(x+6)+12(x+6)

=(2x+12)(x+6)

=2(x+6)(x+6)(by takin common factor out)

plzz mark me brainliest

6 0

3 years ago

Which ordered pair is a solution of the equation y = 5x? (–2, 10) (–5, 25) (–3, 15) (–2, –10)

never [62]

The answer is (-2,-10) you just need to plug them in.

8 0

4 years ago

A 24.6 g marble sliding to the right at 62.0 cm/s overtakes and collides elastically with a 12.3 g marble moving in the same dir

Softa [21]

Answer:

Velocity of the 24.6 g marble is 31 cm/s.

Step-by-step explanation:

Given:

Marble 1:

Mass of the marble $(m_1)$ = 12.3 gm

Velocity of $m_1$ before collision $v_1_i$ = 15.5 cm/s

Velocity of $m_1$ after collision $v_1_f$ = 77.5 cm/s

Marble 2:

Mass of the marble $(m_2)$ = 24.6 gm

Velocity of $m_2$ before collision $v_2_i$ = 62 cm/s

Velocity of $m_2$ after collision $v_2_f$ = ?

From the law of conservation of momentum, we know that momentum before equals the momentum after :

So,

⇒ $P(i)=P(f)$

⇒ $(m_1\times v_1_i )+(m_2\times v_2_i) =(m_1\times v_1_f)+(m_2\times v_2_f)$

⇒ Plugging the values.

⇒ $(12.3\times 15.5) +(24.6\times 62)=(12.3\times 77.5)+(24.6\times v_2_f)$

⇒ $190.65+1525.2=953.25+24.6\times v_2_f$

⇒ $1715.85=953.25+24.6\times v_2_f$

⇒ $1715.85-953.25=24.6\times v_2_f$ ...subtracting both sides 953.25

⇒ $762.6=24.6\times v_2_f$

⇒ $\frac{762.6}{24.6}\ =v_2_f$ ...dividing both sides with 24.6

⇒ $31=v_2_f$

⇒ $v_2_f =31$ cm/s

The velocity of the 24.6 g marble after the collision is 31 cm/s and it will move opposite to of the 12.3 g marbles that is towards left.

6 0

3 years ago

What is another way this expression can be written 0.7×0.4

KiRa [710]

Answer:

7/10*4/10

Step-by-step explanation:

7/10 and 4/10 are both just the fraction forms of the decimal so it should work

8 0

3 years ago

Read 2 more answers